The M981 FISTV (Fire Support Team Vehicle) is a United States Army armored vehicle designed to house an artillery observer team in mechanized units. It was based on the M901 Improved TOW Vehicle (ITV) – itself based on the ubiquitous M113 armored personnel carrier chassis.
123-596: The principal equipment on the FISTV is the Ground/Vehicular Laser Locator Designator (G/VLLD), pronounced "glid". This device obtains precise range information to a lased target. When combined with directional control from an inertial navigation system and vehicle coordinates from the GPS , the system is able to obtain precise coordinates of a designated target. The FISTV also had four SINCGARS radios to track
246-620: A 51 day siege . During the operation on April 19, 1993, the buildings caught fire and 75 of the residents died, including 24 children. The raid had originally been planned by the Bush administration; Clinton had played no role. In August, Clinton signed the Omnibus Budget Reconciliation Act of 1993 , which passed Congress without a Republican vote. It cut taxes for 15 million low-income families, made tax cuts available to 90 percent of small businesses, and raised taxes on
369-414: A Bachelor of Science in foreign service degree in 1968. Georgetown was the only university where Clinton applied. In 1964 and 1965, Clinton won elections for class president . From 1964 to 1967, he was an intern and then a clerk in the office of Arkansas Senator J. William Fulbright . While in college, he became a brother of service fraternity Alpha Phi Omega and was elected to Phi Beta Kappa . He
492-494: A centrist Third Way philosophy of governance. His policy of fiscal conservatism helped to reduce deficits on budgetary matters. Clinton presided over the longest period of peacetime economic expansion in American history. The Congressional Budget Office reported budget surpluses of $ 69 billion in 1998, $ 126 billion in 1999, and $ 236 billion in 2000, during the last three years of Clinton's presidency. Over
615-408: A moving map display , or recorded or used by some other system, such as a vehicle guidance system. Although usually not formed explicitly in the receiver processing, the conceptual time differences of arrival (TDOAs) define the measurement geometry. Each TDOA corresponds to a hyperboloid of revolution (see Multilateration ). The line connecting the two satellites involved (and its extensions) forms
738-507: A 52 percent to 48 percent margin. In 1976, Clinton ran for Arkansas attorney general . Defeating the secretary of state and the deputy attorney general in the Democratic primary, Clinton was elected with no opposition at all in the general election, as no Republican had run for the office. In 1978, Clinton entered the Arkansas gubernatorial primary. At just 31 years old, he was one of
861-552: A Brigade asset positioned to support the Brigade fires plan. Among its several advantages, the hammerhead could be raised from behind protective terrain or concealing cover. Although gyroscopes had their weaknesses, these systems were replaced or supplemented with other location & positioning systems, such as GPS. Should gyros or technology fail, the crew could also use basic land navigation skills, like triangulating from known terrain features. The FISTV had several limitations, including
984-508: A centrist " Third Way " political philosophy , became known as a New Democrat . Clinton was born and raised in Arkansas . He graduated from Georgetown University in 1968, and later from Yale Law School , where he met his future wife, Hillary Rodham . After graduating from law school, Clinton returned to Arkansas and won election as state attorney general, followed by two non-consecutive tenures as Arkansas governor . As governor, he overhauled
1107-690: A deliberate error introduced into the GPS data that military receivers could correct for. As civilian GPS usage grew, there was increasing pressure to remove this error. The SA system was temporarily disabled during the Gulf War , as a shortage of military GPS units meant that many US soldiers were using civilian GPS units sent from home. In the 1990s, Differential GPS systems from the US Coast Guard , Federal Aviation Administration , and similar agencies in other countries began to broadcast local GPS corrections, reducing
1230-450: A directive making GPS freely available for civilian use, once it was sufficiently developed, as a common good. The first Block II satellite was launched on February 14, 1989, and the 24th satellite was launched in 1994. The GPS program cost at this point, not including the cost of the user equipment but including the costs of the satellite launches, has been estimated at US$ 5 billion (equivalent to $ 10 billion in 2023). Initially,
1353-470: A firm second-place finish. Winning the big prizes of Florida and Texas and many of the Southern primaries on Super Tuesday gave Clinton a sizable delegate lead. However, former California governor Jerry Brown was scoring victories and Clinton had yet to win a significant contest outside his native South. With no major Southern state remaining, Clinton targeted New York, which had many delegates. He scored
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#17330854568351476-510: A full complement of 24 satellites in 2027. The GPS project was launched in the United States in 1973 to overcome the limitations of previous navigation systems, combining ideas from several predecessors, including classified engineering design studies from the 1960s. The U.S. Department of Defense developed the system, which originally used 24 satellites, for use by the United States military, and became fully operational in 1993. Civilian use
1599-548: A jazz trio, The 3 Kings , with Randy Goodrum , who became a successful professional pianist. In 1961, Clinton became a member of the Hot Springs Chapter of the Order of DeMolay , a youth group affiliated with Freemasonry , but he never became a Freemason. He briefly considered dedicating his life to music, but as he noted in his autobiography My Life : Clinton began an interest in law at Hot Springs High, when he took up
1722-560: A law professor at the University of Arkansas . In 1974, he ran for the House of Representatives . Running in the conservative 3rd district against incumbent Republican John Paul Hammerschmidt , Clinton's campaign was bolstered by the anti-Republican and anti-incumbent mood resulting from the Watergate scandal . Hammerschmidt, who had received 77 percent of the vote in 1972, defeated Clinton by only
1845-660: A leading figure among the New Democrats , a group of Democrats who advocated welfare reform, smaller government, and other policies not supported by liberals. Formally organized as the Democratic Leadership Council (DLC), the New Democrats argued that in light of President Ronald Reagan 's landslide victory in 1984 , the Democratic Party needed to adopt a more centrist political stance in order to succeed at
1968-429: A liaison. The U.S. Department of Defense is required by law to "maintain a Standard Positioning Service (as defined in the federal radio navigation plan and the standard positioning service signal specification) that will be available on a continuous, worldwide basis" and "develop measures to prevent hostile use of GPS and its augmentations without unduly disrupting or degrading civilian uses". USA-203 from Block IIR-M
2091-554: A manageable level to permit accurate navigation. During Labor Day weekend in 1973, a meeting of about twelve military officers at the Pentagon discussed the creation of a Defense Navigation Satellite System (DNSS) . It was at this meeting that the real synthesis that became GPS was created. Later that year, the DNSS program was named Navstar. Navstar is often erroneously considered an acronym for "NAVigation System using Timing And Ranging" but
2214-457: A minimum, four satellites must be in view of the receiver for it to compute four unknown quantities (three position coordinates and the deviation of its own clock from satellite time). Each GPS satellite continually broadcasts a signal ( carrier wave with modulation ) that includes: Conceptually, the receiver measures the TOAs (according to its own clock) of four satellite signals. From the TOAs and
2337-647: A moderate and as a member of the New Democrat wing of the Democratic Party, and he headed the moderate Democratic Leadership Council in 1990 and 1991. In the first primary contest, the Iowa Caucus , Clinton finished a distant third to Iowa senator Tom Harkin . During the campaign for the New Hampshire primary , reports surfaced that Clinton had engaged in an extramarital affair with Gennifer Flowers . Clinton fell far behind former Massachusetts senator Paul Tsongas in
2460-417: A police officer and a civilian, Rector shot himself in the head, leading to what his lawyers said was a state where he could still talk but did not understand the idea of death. According to both Arkansas state law and federal law, a seriously mentally impaired inmate cannot be executed. The courts disagreed with the allegation of grave mental impairment and allowed the execution. Clinton's return to Arkansas for
2583-717: A promise he failed to keep. By election time, the economy was souring and Bush saw his approval rating plummet to just slightly over 40 percent. Finally, conservatives were previously united by anti-communism, but with the end of the Cold War, the party lacked a uniting issue. When Pat Buchanan and Pat Robertson addressed Christian themes at the Republican National Convention —with Bush criticizing Democrats for omitting God from their platform—many moderates were alienated. Clinton then pointed to his moderate, "New Democrat" record as governor of Arkansas, though some on
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#17330854568352706-615: A public figure. One was his visit as a Boys Nation senator to the White House to meet President John F. Kennedy . The other was watching Martin Luther King Jr. 's 1963 " I Have a Dream " speech on TV, which impressed him so much that he later memorized it. With the aid of scholarships, Clinton attended the School of Foreign Service at Georgetown University in Washington, D.C., receiving
2829-431: A receiver start-up situation. Most receivers have a track algorithm , sometimes called a tracker , that combines sets of satellite measurements collected at different times—in effect, taking advantage of the fact that successive receiver positions are usually close to each other. After a set of measurements are processed, the tracker predicts the receiver location corresponding to the next set of satellite measurements. When
2952-522: A resounding victory in New York City, shedding his image as a regional candidate. Having been transformed into the consensus candidate, he secured the Democratic Party nomination, finishing with a victory in Jerry Brown's home state of California. During the campaign, questions of conflict of interest regarding state business and the politically powerful Rose Law Firm , at which Hillary Rodham Clinton
3075-531: A special legislative session —the longest in Arkansas history. Many have considered this the greatest achievement of the Clinton governorship. He defeated four Republican candidates for governor: Lowe (1978), White (1982 and 1986), Jonesboro businessmen Woody Freeman (1984), and Sheffield Nelson of Little Rock (1990). Also in the 1980s, the Clintons' personal and business affairs included transactions that became
3198-399: Is a member of Kappa Kappa Psi honorary band fraternity. Upon graduating from Georgetown in 1968, Clinton won a Rhodes Scholarship to University College, Oxford , where he initially read for a B.Phil. in philosophy, politics, and economics but transferred to a B.Litt. in politics and, ultimately, a B.Phil. in politics. Clinton did not expect to return for the second year because of
3321-458: Is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. It does not require the user to transmit any data, and operates independently of any telephone or Internet reception, though these technologies can enhance the usefulness of
3444-514: Is owned and operated by the United States government as a national resource. The Department of Defense is the steward of GPS. The Interagency GPS Executive Board (IGEB) oversaw GPS policy matters from 1996 to 2004. After that, the National Space-Based Positioning, Navigation and Timing Executive Committee was established by presidential directive in 2004 to advise and coordinate federal departments and agencies on matters concerning
3567-767: Is unhealthy For a more complete list, see List of GPS satellites On February 10, 1993, the National Aeronautic Association selected the GPS Team as winners of the 1992 Robert J. Collier Trophy , the US's most prestigious aviation award. This team combines researchers from the Naval Research Laboratory, the U.S. Air Force, the Aerospace Corporation , Rockwell International Corporation, and IBM Federal Systems Company. The citation honors them "for
3690-484: The AIDS United Action five point plan. Clinton won the 1992 presidential election (370 electoral votes) against Republican incumbent George H. W. Bush (168 electoral votes) and billionaire populist Ross Perot (zero electoral votes), who ran as an independent on a platform that focused on domestic issues. Bush's steep decline in public approval was a significant part of Clinton's success. Clinton's victory in
3813-495: The Doppler effect , they could pinpoint where the satellite was along its orbit. The Director of the APL gave them access to their UNIVAC I computer to perform the heavy calculations required. Early the next year, Frank McClure, the deputy director of the APL, asked Guier and Weiffenbach to investigate the inverse problem: pinpointing the user's location, given the satellite's. (At the time,
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3936-915: The George McGovern campaign for the 1972 United States presidential election in order to move in with her in California. The couple continued living together in New Haven when they returned to law school. Clinton eventually moved to Texas with Rodham in 1972 to take a job leading McGovern's effort there. He spent considerable time in Dallas , at the campaign's local headquarters on Lemmon Avenue, where he had an office. Clinton worked with future two-term mayor of Dallas Ron Kirk , future governor of Texas Ann Richards , and then unknown television director and filmmaker Steven Spielberg . After graduating from Yale Law School , Clinton returned to Arkansas and became
4059-769: The North American Free Trade Agreement and the Violent Crime Control and Law Enforcement Act but failed to pass his plan for national health care reform . Starting in the mid-1990s, he began an ideological evolution as he became much more conservative in his domestic policy, advocating for and signing the Personal Responsibility and Work Opportunity Act , the State Children's Health Insurance Program and financial deregulation measures. He appointed Ruth Bader Ginsburg and Stephen Breyer to
4182-704: The Oslo I Accord and Camp David Summit to advance the Israeli–Palestinian peace process , and assisted the Northern Ireland peace process . Clinton won re-election in the 1996 election , defeating Republican nominee Bob Dole and Reform Party nominee Perot. His second term was dominated by the Clinton–Lewinsky scandal , which began in 1995, when he had a sexual relationship with the then 22-year-old White House intern Monica Lewinsky . In January 1998, news of
4305-580: The Senate , where he was acquitted on both charges. During the last three years of Clinton's presidency, the Congressional Budget Office reported a budget surplus—the first such surplus since 1969. Clinton left office in 2001 with the joint-highest approval rating of any U.S. president. His presidency ranks among the middle to upper tier in historical rankings of U.S. presidents . However, his personal conduct and misconduct allegations have made him
4428-739: The U.S. Supreme Court . In foreign policy, Clinton ordered U.S. military intervention in the Bosnian and Kosovo wars , eventually signing the Dayton Peace agreement . He also called for the expansion of NATO in Eastern Europe and many former Warsaw Pact members joined NATO during his presidency. Clinton's foreign policy in the Middle East saw him sign the Iraq Liberation Act which gave aid to groups against Saddam Hussein . He also participated in
4551-593: The Vietnam War . Aller's 1971 suicide had an influential impact on Clinton. British writer and feminist Sara Maitland said of Clinton, "I remember Bill and Frank Aller taking me to a pub in Walton Street in the summer term of 1969 and talking to me about the Vietnam War. I knew nothing about it, and when Frank began to describe the napalming of civilians I began to cry. Bill said that feeling bad wasn't good enough. That
4674-504: The navigation equations gives the position of the receiver along with the difference between the time kept by the receiver's on-board clock and the true time-of-day, thereby eliminating the need for a more precise and possibly impractical receiver based clock. Applications for GPS such as time transfer , traffic signal timing, and synchronization of cell phone base stations , make use of this cheap and highly accurate timing. Some GPS applications use this time for display, or, other than for
4797-603: The "Boy Governor". He worked on educational reform and directed the maintenance of Arkansas's roads, with wife Hillary leading a successful committee on urban health care reform. However, his term included an unpopular motor vehicle tax and citizens' anger over the escape of Cuban refugees (from the Mariel boatlift ) detained in Fort Chaffee in 1980. Monroe Schwarzlose, of Kingsland in Cleveland County , polled 31 percent of
4920-447: The 1992 election had several unique characteristics. Voters felt that economic conditions were worse than they actually were, which harmed Bush. A rare event was the presence of a strong third-party candidate. Liberals launched a backlash against 12 years of a conservative White House. The chief factor was Clinton's uniting his party, and winning over a number of heterogeneous groups. Clinton's " third way " of moderate liberalism built up
5043-520: The Earth's center) and the offset of the receiver clock relative to the GPS time are computed simultaneously, using the navigation equations to process the TOFs. The receiver's Earth-centered solution location is usually converted to latitude , longitude and height relative to an ellipsoidal Earth model. The height may then be further converted to height relative to the geoid , which is essentially mean sea level. These coordinates may be displayed, such as on
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5166-641: The GPS and related systems. The executive committee is chaired jointly by the Deputy Secretaries of Defense and Transportation. Its membership includes equivalent-level officials from the Departments of State, Commerce, and Homeland Security, the Joint Chiefs of Staff and NASA . Components of the executive office of the president participate as observers to the executive committee, and the FCC chairman participates as
5289-411: The GPS positioning information. It provides critical positioning capabilities to military, civil, and commercial users around the world. Although the United States government created, controls, and maintains the GPS system, it is freely accessible to anyone with a GPS receiver. The GPS project was started by the U.S. Department of Defense in 1973. The first prototype spacecraft was launched in 1978 and
5412-668: The GPS service, including new signals for civil use and increased accuracy and integrity for all users, all the while maintaining compatibility with existing GPS equipment. Modernization of the satellite system has been an ongoing initiative by the U.S. Department of Defense through a series of satellite acquisitions to meet the growing needs of the military, civilians, and the commercial market. As of early 2015, high-quality Standard Positioning Service (SPS) GPS receivers provided horizontal accuracy of better than 3.5 meters (11 ft), although many factors such as receiver and antenna quality and atmospheric issues can affect this accuracy. GPS
5535-714: The Global Positioning System (GPS) its 60th Anniversary Award, nominated by IAF member, the American Institute for Aeronautics and Astronautics (AIAA). The IAF Honors and Awards Committee recognized the uniqueness of the GPS program and the exemplary role it has played in building international collaboration for the benefit of humanity. On December 6, 2018, Gladys West was inducted into the Air Force Space and Missile Pioneers Hall of Fame in recognition of her work on an extremely accurate geodetic Earth model, which
5658-474: The Navy TRANSIT system were too slow for the high speeds of Air Force operation. The Naval Research Laboratory (NRL) continued making advances with their Timation (Time Navigation) satellites, first launched in 1967, second launched in 1969, with the third in 1974 carrying the first atomic clock into orbit and the fourth launched in 1977. Another important predecessor to GPS came from a different branch of
5781-568: The Navy was developing the submarine-launched Polaris missile, which required them to know the submarine's location.) This led them and APL to develop the TRANSIT system. In 1959, ARPA (renamed DARPA in 1972) also played a role in TRANSIT. TRANSIT was first successfully tested in 1960. It used a constellation of five satellites and could provide a navigational fix approximately once per hour. In 1967,
5904-511: The New Hampshire polls. Following Super Bowl XXVI , Clinton and his wife Hillary went on 60 Minutes to rebuff the charges. Their television appearance was a calculated risk, but Clinton regained several delegates. He finished second to Tsongas in the New Hampshire primary , but after trailing badly in the polls and coming within single digits of winning, the media viewed it as a victory. News outlets labeled him "The Comeback Kid" for earning
6027-595: The SLBM situation. In 1960, the Air Force proposed a radio-navigation system called MOSAIC (MObile System for Accurate ICBM Control) that was essentially a 3-D LORAN System. A follow-on study, Project 57, was performed in 1963 and it was "in this study that the GPS concept was born". That same year, the concept was pursued as Project 621B, which had "many of the attributes that you now see in GPS" and promised increased accuracy for U.S. Air Force bombers as well as ICBMs. Updates from
6150-520: The TOTs, the receiver forms four time of flight (TOF) values, which are (given the speed of light) approximately equivalent to receiver-satellite ranges plus time difference between the receiver and GPS satellites multiplied by speed of light, which are called pseudo-ranges. The receiver then computes its three-dimensional position and clock deviation from the four TOFs. In practice the receiver position (in three dimensional Cartesian coordinates with origin at
6273-602: The U.S. Navy developed the Timation satellite, which proved the feasibility of placing accurate clocks in space, a technology required for GPS. In the 1970s, the ground-based OMEGA navigation system, based on phase comparison of signal transmission from pairs of stations, became the first worldwide radio navigation system. Limitations of these systems drove the need for a more universal navigation solution with greater accuracy. Although there were wide needs for accurate navigation in military and civilian sectors, almost none of those
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#17330854568356396-442: The U.S. Secretary of Defense, William Perry , in view of the widespread growth of differential GPS services by private industry to improve civilian accuracy. Moreover, the U.S. military was developing technologies to deny GPS service to potential adversaries on a regional basis. Selective Availability was removed from the GPS architecture beginning with GPS-III. Since its deployment, the U.S. has implemented several improvements to
6519-416: The US government announced that the next generation of GPS satellites would not include the feature at all. Advances in technology and new demands on the existing system have now led to efforts to modernize the GPS and implement the next generation of GPS Block III satellites and Next Generation Operational Control System (OCX) which was authorized by the U.S. Congress in 2000. When Selective Availability
6642-504: The United States military. In 1964, the United States Army orbited its first Sequential Collation of Range ( SECOR ) satellite used for geodetic surveying. The SECOR system included three ground-based transmitters at known locations that would send signals to the satellite transponder in orbit. A fourth ground-based station, at an undetermined position, could then use those signals to fix its location precisely. The last SECOR satellite
6765-464: The Vietnam War, would understand and appreciate his position. After Oxford, Clinton attended Yale Law School and earned a Juris Doctor (J.D.) degree in 1973. In 1971, he met his future wife, Hillary Rodham, in the Yale Law Library ; she was a class year ahead of him. They began dating and were soon inseparable. After only about a month, Clinton postponed his summer plans to be a coordinator for
6888-551: The affair made tabloid headlines. This scandal escalated throughout the year, culminating in December when Clinton was impeached by the House of Representatives , becoming the first U.S. president to be impeached since Andrew Johnson . The two impeachment articles that the House passed were centered around perjury and Clinton using the powers of the presidency to commit obstruction of justice. In 1999, Clinton's impeachment trial began in
7011-451: The axis of the hyperboloid. The receiver is located at the point where three hyperboloids intersect. It is sometimes incorrectly said that the user location is at the intersection of three spheres. While simpler to visualize, this is the case only if the receiver has a clock synchronized with the satellite clocks (i.e., the receiver measures true ranges to the satellites rather than range differences). There are marked performance benefits to
7134-502: The basic position calculations, do not use it at all. Bill Clinton [REDACTED] William Jefferson Clinton ( né Blythe ; born August 19, 1946) is an American lawyer and politician who served as the 42nd president of the United States from 1993 to 2001. A member of the Democratic Party , he previously served as governor of Arkansas from 1979 to 1981 and again from 1983 to 1992. Clinton, whose policies reflected
7257-477: The basis of the Whitewater controversy investigation, which later dogged his presidential administration. After extensive investigation over several years, no indictments were made against the Clintons related to the years in Arkansas. According to some sources, Clinton was a death penalty opponent in his early years, but he eventually switched positions. However he might have felt previously, by 1992, Clinton
7380-640: The cause of world peace", having "a powerful collaborator in his wife", and for winning "general applause for his achievement of resolving the gridlock that prevented an agreed budget". During the Vietnam War, Clinton received educational draft deferments while he was in England in 1968 and 1969. While at Oxford, he participated in Vietnam War protests and organized a Moratorium to End the War in Vietnam event in October 1969. He
7503-428: The challenge to argue the defense of the ancient Roman senator Catiline in a mock trial in his Latin class. After a vigorous defense that made use of his "budding rhetorical and political skills", he told the Latin teacher Elizabeth Buck it "made him realize that someday he would study law". Clinton has identified two influential moments in his life, both occurring in 1963, that contributed to his decision to become
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#17330854568357626-587: The clocks on GPS satellites, as observed by those on Earth, run 38 microseconds faster per day than those on the Earth. The design of GPS corrects for this difference; because without doing so, GPS calculated positions would accumulate errors of up to 10 kilometers per day (6 mi/d). When the Soviet Union launched its first artificial satellite ( Sputnik 1 ) in 1957, two American physicists, William Guier and George Weiffenbach, at Johns Hopkins University 's Applied Physics Laboratory (APL) monitored its radio transmissions. Within hours they realized that, because of
7749-563: The controversial execution of Ricky Ray Rector , would go forward as scheduled. During his time as governor in the 1980s, Arkansas was the center of a drug smuggling operation through Mena Airport . CIA agent Barry Seal allegedly imported three to five billion dollars worth of cocaine through the airport, and the operation was linked to the Iran–Contra affair . Clinton was accused of knowing about this operation, although nothing could be proven against him. Journalist Sam Smith tied him to various questionable business dealings. Clinton
7872-496: The distance from the satellite to the ground station. With the distance information collected from multiple ground stations, the location coordinates of any satellite at any time can be calculated with great precision. Each GPS satellite carries an accurate record of its own position and time, and broadcasts that data continuously. Based on data received from multiple GPS satellites , an end user's GPS receiver can calculate its own four-dimensional position in spacetime ; However, at
7995-451: The distance traveled between two position measurements drops below or near the random error of position measurement. GPS units can use measurements of the Doppler shift of the signals received to compute velocity accurately. More advanced navigation systems use additional sensors like a compass or an inertial navigation system to complement GPS. GPS requires four or more satellites to be visible for accurate navigation. The solution of
8118-452: The draft and avoid serving in uniform. He issued a notarized statement during the 1992 presidential campaign: During the 1992 campaign, it was revealed that Clinton's uncle had attempted to secure him a position in the Navy Reserve , which would have prevented him from being deployed to Vietnam. This effort was unsuccessful and Clinton said in 1992 that he had been unaware of it until then. Although legal, Clinton's actions with respect to
8241-450: The draft and deciding whether to serve in the military were criticized during his first presidential campaign by conservatives and some Vietnam veterans, some of whom charged that he had used Fulbright's influence to avoid military service. Clinton's 1992 campaign manager, James Carville , successfully argued that Clinton's letter in which he declined to join the ROTC should be made public, insisting that voters, many of whom had also opposed
8364-410: The draft and received a high number (311), meaning that those whose birthdays had been drawn as numbers 1 to 310 would be drafted before him, making it unlikely he would be called up. (In fact, the highest number drafted was 195.) Colonel Eugene Holmes, the Army officer who had been involved with Clinton's ROTC application, suspected that Clinton attempted to manipulate the situation to avoid
8487-430: The draft and so he switched programs; this type of activity was common among other Rhodes Scholars from his cohort. He had received an offer to study at Yale Law School , and so he left early to return to the United States and did not receive a degree from Oxford. During his time at Oxford, Clinton befriended fellow American Rhodes Scholar Frank Aller. In 1969, Aller received a draft letter that mandated deployment to
8610-407: The effect of both SA degradation and atmospheric effects (that military receivers also corrected for). The U.S. military had also developed methods to perform local GPS jamming, meaning that the ability to globally degrade the system was no longer necessary. As a result, United States President Bill Clinton signed a bill ordering that Selective Availability be disabled on May 1, 2000; and, in 2007 ,
8733-418: The eight years of the Clinton administration, the abortion rate declined by 18 percent. On February 15, 1993, Clinton made his first address to the nation, announcing his plan to raise taxes to close a budget deficit . Two days later, in a nationally televised address to a joint session of Congress , Clinton unveiled his economic plan. The plan focused on reducing the deficit rather than on cutting taxes for
8856-575: The election ended twelve years of Republican rule of the White House and twenty of the previous twenty-four years. The election gave Democrats full control of the United States Congress , the first time one party controlled both the executive and legislative branches since Democrats held the 96th United States Congress during the presidency of Jimmy Carter . According to Seymour Martin Lipset ,
8979-480: The end of his presidency, the Clintons moved to 15 Old House Lane in Chappaqua, New York , in order to quell political worries about his wife's residency for election as a U.S. Senator from New York. "Our democracy must be not only the envy of the world but the engine of our own renewal. There is nothing wrong with America that cannot be cured by what is right with America." After his presidential transition , Clinton
9102-447: The execution was framed in an article for The New York Times as a possible political move to counter "soft on crime" accusations. Bush's approval ratings were around 80 percent during the Gulf War , and he was described as unbeatable. When Bush compromised with Democrats to try to lower federal deficits, he reneged on his promise not to raise taxes , which hurt his approval rating. Clinton repeatedly condemned Bush for making
9225-428: The full constellation of 24 satellites became operational in 1993. After Korean Air Lines Flight 007 was shot down when it mistakenly entered Soviet airspace, President Ronald Reagan announced that the GPS system would be made available for civilian use as of September 16, 1983; however, initially this civilian use was limited to an average accuracy of 100 meters (330 ft) by use of Selective Availability (SA),
9348-407: The highest-quality signal was reserved for military use, and the signal available for civilian use was intentionally degraded, in a policy known as Selective Availability . This changed on May 1, 2000, with U.S. President Bill Clinton signing a policy directive to turn off Selective Availability to provide the same accuracy to civilians that was afforded to the military. The directive was proposed by
9471-412: The latter's death. In Hot Springs, Clinton attended St. John's Catholic Elementary School, Ramble Elementary School, and the segregated Hot Springs High School , where he was an active student leader, avid reader, and musician. Clinton was in the chorus and played the tenor saxophone , winning first chair in the state band's saxophone section. While in high school, Clinton performed for two years in
9594-513: The middle class, which had been high on his campaign agenda. Clinton's advisers pressured him to raise taxes, based on the theory that a smaller federal budget deficit would reduce bond interest rates. President Clinton's attorney general Janet Reno authorized the FBI's use of armored vehicles to deploy tear gas into the buildings of the Branch Davidian community near Waco, Texas, in hopes of ending
9717-487: The more liberal side of the party remained suspicious. Many Democrats who had supported Ronald Reagan and Bush in previous elections switched their support to Clinton. Clinton and his running mate, Al Gore , toured the country during the final weeks of the campaign, shoring up support and pledging a "new beginning". On March 26, 1992, during a Democratic fund raiser of the presidential campaign, Robert Rafsky confronted then Gov. Bill Clinton of Arkansas and asked what he
9840-528: The most significant development for safe and efficient navigation and surveillance of air and spacecraft since the introduction of radio navigation 50 years ago". Two GPS developers received the National Academy of Engineering Charles Stark Draper Prize for 2003: GPS developer Roger L. Easton received the National Medal of Technology on February 13, 2006. Francis X. Kane (Col. USAF, ret.)
9963-436: The nation's fiscal health and put the nation on a firm footing abroad amid globalization and the development of anti-American terrorist organizations. During his presidency, Clinton advocated for a wide variety of legislation and programs , most of which were enacted into law or implemented by the executive branch. His policies, particularly the North American Free Trade Agreement and welfare reform , have been attributed to
10086-586: The national level. Clinton delivered the Democratic response to Reagan's 1985 State of the Union Address and served as chair of the National Governors Association from 1986 to 1987, bringing him to an audience beyond Arkansas. In the early 1980s, Clinton made reform of the Arkansas education system a top priority of his gubernatorial administration. The Arkansas Education Standards Committee
10209-440: The new measurements are collected, the receiver uses a weighting scheme to combine the new measurements with the tracker prediction. In general, a tracker can (a) improve receiver position and time accuracy, (b) reject bad measurements, and (c) estimate receiver speed and direction. The disadvantage of a tracker is that changes in speed or direction can be computed only with a delay, and that derived direction becomes inaccurate when
10332-481: The nuclear triad, also had requirements for a more accurate and reliable navigation system. The U.S. Navy and U.S. Air Force were developing their own technologies in parallel to solve what was essentially the same problem. To increase the survivability of ICBMs, there was a proposal to use mobile launch platforms (comparable to the Soviet SS-24 and SS-25 ) and so the need to fix the launch position had similarity to
10455-608: The numerous voice and data radio nets pertinent to fire support operations. The FISTV identifies targets and sends their description and location to the Fire Direction Center. Each armor or mechanized infantry company in the US Army has one M981, with a crew consisting of a lieutenant, a noncommissioned officer, and two soldiers. This crew also serves as advisors to the company commander on fire support issues. FISTVs are also used by Combat Observation and Lasing Teams (COLTs),
10578-430: The officer in charge of the program that he opposed the war, but did not think it was honorable to use ROTC, National Guard, or Reserve service to avoid serving in Vietnam. He further stated that because he opposed the war, he would not volunteer to serve in uniform, but would subject himself to the draft, and would serve if selected only as a way "to maintain my political viability within the system". Clinton registered for
10701-500: The potential candidacy of Hillary for governor, initially favored—but ultimately vetoed—by the First Lady). For the nomination, Clinton endorsed Massachusetts governor Michael Dukakis . He gave the nationally televised opening night address at the 1988 Democratic National Convention , but his speech, which was 33 minutes long and twice the length it was expected to be, was criticized for being too long. Clinton presented himself both as
10824-514: The precision needed for GPS. The design of GPS is based partly on similar ground-based radio-navigation systems, such as LORAN and the Decca Navigator System , developed in the early 1940s. In 1955, Friedwardt Winterberg proposed a test of general relativity —detecting time slowing in a strong gravitational field using accurate atomic clocks placed in orbit inside artificial satellites. Special and general relativity predicted that
10947-570: The raised position and had a planning time of 3 minutes, 30 seconds plus the time it took the north-seeking gyrocompass (NSG) to align. The M981 FISTV has been supplanted by the M7 Bradley and M1131 Stryker fire support vehicles. GPS The Global Positioning System ( GPS ), originally Navstar GPS , is a satellite-based radio navigation system owned by the United States Space Force and operated by Mission Delta 31 . It
11070-644: The reason for the ultra-secrecy at that time. The nuclear triad consisted of the United States Navy's submarine-launched ballistic missiles (SLBMs) along with United States Air Force (USAF) strategic bombers and intercontinental ballistic missiles (ICBMs). Considered vital to the nuclear deterrence posture, accurate determination of the SLBM launch position was a force multiplier . Precise navigation would enable United States ballistic missile submarines to get an accurate fix of their positions before they launched their SLBMs. The USAF, with two thirds of
11193-408: The reference atomic clocks at the ground control stations; any drift of the clocks aboard the satellites from the reference time maintained on the ground stations is corrected regularly. Since the speed of radio waves ( speed of light ) is constant and independent of the satellite speed, the time delay between when the satellite transmits a signal and the ground station receives it is proportional to
11316-477: The same reason. Clinton had repeatedly promised to encourage gays in the military service, despite what he knew to be the strong opposition of the military leadership. He tried anyway, and was publicly opposed by the top generals, and forced by Congress to a compromise position of " Don't ask, don't tell " whereby gays could serve if and only if they kept it secret. He devised a $ 16-billion stimulus package primarily to aid inner-city programs desired by liberals, but it
11439-509: The state's education system and served as chairman of the National Governors Association . Clinton was elected president in the 1992 election , defeating the incumbent Republican Party president George H. W. Bush and the independent businessman Ross Perot . He became the first president to be born in the Baby Boomer generation. Clinton presided over the longest period of peacetime economic expansion in American history. He signed into law
11562-753: The subject of substantial scrutiny. Since leaving office, Clinton has been involved in public speaking and humanitarian work. He created the Clinton Foundation to address international causes such as the prevention of HIV/AIDS and global warming. In 2009, he was named the United Nations special envoy to Haiti . After the 2010 Haiti earthquake , Clinton founded the Clinton Bush Haiti Fund with George W. Bush and Barack Obama . He has remained active in Democratic Party politics, campaigning for his wife's 2008 and 2016 presidential campaigns . Clinton
11685-403: The user carrying a clock synchronized with the satellites. Foremost is that only three satellites are needed to compute a position solution. If it were an essential part of the GPS concept that all users needed to carry a synchronized clock, a smaller number of satellites could be deployed, but the cost and complexity of the user equipment would increase. The description above is representative of
11808-458: The vehicle's poor performance compared to the M2 Bradleys and M1 Abrams tanks with which it maneuvered, forcing the other vehicles to wait while the FISTV labored to keep up. Its top-heavy design made it prone to rollovers. The lack of a heavy weapons system or enhanced armor meant that the crew depended solely on the supported element for protection. It could not move with the hammerhead deployed in
11931-512: The vote against Clinton in the Democratic gubernatorial primary of 1980. Some suggested Schwarzlose's unexpected voter turnout foreshadowed Clinton's defeat by Republican challenger Frank D. White in the general election that year. As Clinton once joked, he was the youngest ex-governor in the nation's history. After leaving office in January 1981, Clinton joined friend Bruce Lindsey 's Little Rock law firm of Wright, Lindsey and Jennings. In 1982, he
12054-607: The years of the recorded surplus, the gross national debt rose each year. At the end of the fiscal year (September 30) for each of the years a surplus was recorded, the U.S. Treasury reported a gross debt of $ 5.413 trillion in 1997, $ 5.526 trillion in 1998, $ 5.656 trillion in 1999, and $ 5.674 trillion in 2000. Over the same period, the Office of Management and Budget reported an end of year (December 31) gross debt of $ 5.369 trillion in 1997, $ 5.478 trillion in 1998, $ 5.606 in 1999, and $ 5.629 trillion in 2000. At
12177-468: The youngest gubernatorial candidates in the state's history. Clinton was elected governor of Arkansas in 1978 , having defeated the Republican candidate Lynn Lowe , a farmer from Texarkana . Clinton was only 32 years old when he took office, the youngest governor in the country at the time and the second youngest governor in the history of Arkansas. Due to his youthful appearance, Clinton was often called
12300-401: Was inaugurated as the 42nd president of the United States on January 20, 1993. Clinton was physically exhausted at the time, and had an inexperienced staff. His high levels of public support dropped in the first few weeks, as he made a series of mistakes. His first choice for attorney general had not paid her taxes on babysitters and was forced to withdraw. The second appointee also withdrew for
12423-473: Was a partner, arose. Clinton argued the questions were moot because all transactions with the state had been deducted before determining Hillary's firm pay. Further concern arose when Bill Clinton announced that, with Hillary, voters would be getting two presidents "for the price of one". Clinton was still the governor of Arkansas while campaigning for U.S. president, and he returned to his home state to see that Ricky Ray Rector would be executed. After killing
12546-598: Was accused of serious sexual misconduct in Arkansas, including allegations of using the Arkansas State Police to gain access to women ( Troopergate affair ). The killing of Don Henry and Kevin Ives in 1987 started various conspiracy theories that accused Clinton and the Arkansas state authorities of covering up the crime. In 1987, the media speculated that Clinton would enter the presidential race. Clinton decided to remain as Arkansas governor (following consideration for
12669-557: Was allowed from the 1980s. Roger L. Easton of the Naval Research Laboratory , Ivan A. Getting of The Aerospace Corporation , and Bradford Parkinson of the Applied Physics Laboratory are credited with inventing it. The work of Gladys West on the creation of the mathematical geodetic Earth model is credited as instrumental in the development of computational techniques for detecting satellite positions with
12792-402: Was also accused by Gennifer Flowers to have used cocaine as governor and his half-brother Roger was sentenced to prison in 1985 for possession and smuggling of cocaine, but was later pardoned by his brother after serving his sentence. During his time in Arkansas, there were also other scandals such as the Whitewater controversy involving the Clintons' real estate dealings, and Bill Clinton
12915-607: Was born William Jefferson Blythe III on August 19, 1946, at Julia Chester Hospital in Hope, Arkansas . He is the son of William Jefferson Blythe Jr. , a traveling salesman who died in an automobile accident three months before his birth, and Virginia Dell Cassidy (later Virginia Kelley). Blythe had initially survived the crash, but drowned in a drainage ditch. His parents had married on September 4, 1943, but this union later proved to be bigamous, as Blythe
13038-596: Was chaired by Clinton's wife Hillary, who was also an attorney as well as the chair of the Legal Services Corporation . The committee transformed Arkansas's education system. Proposed reforms included more spending for schools (supported by a sales-tax increase), better opportunities for gifted children, vocational education, higher teachers' salaries, more course variety, and compulsory teacher competency exams. The reforms passed in September 1983 after Clinton called
13161-420: Was concerned with the curving of the paths of radio waves ( atmospheric refraction ) traversing the ionosphere from NavSTAR satellites. After Korean Air Lines Flight 007 , a Boeing 747 carrying 269 people, was shot down by a Soviet interceptor aircraft after straying in prohibited airspace because of navigational errors, in the vicinity of Sakhalin and Moneron Islands , President Ronald Reagan issued
13284-518: Was defeated by a Republican filibuster in the Senate. His popularity at the 100 day mark of his term was the lowest of any president at that point. Public opinion did support one liberal program, and Clinton signed the Family and Medical Leave Act of 1993 , which required large employers to allow employees to take unpaid leave for pregnancy or a serious medical condition. This action had bipartisan support, and
13407-485: Was destroyed in a launch failure). The effect of the ionosphere on radio transmission was investigated in a geophysics laboratory of Air Force Cambridge Research Laboratory , renamed to Air Force Geophysical Research Lab (AFGRL) in 1974. AFGRL developed the Klobuchar model for computing ionospheric corrections to GPS location. Of note is work done by Australian space scientist Elizabeth Essex-Cohen at AFGRL in 1974. She
13530-700: Was discontinued, GPS was accurate to about 5 meters (16 ft). GPS receivers that use the L5 band have much higher accuracy of 30 centimeters (12 in), while those for high-end applications such as engineering and land surveying are accurate to within 2 cm ( 3 ⁄ 4 in) and can even provide sub-millimeter accuracy with long-term measurements. Consumer devices such as smartphones can be accurate to 4.9 m (16 ft) or better when used with assistive services like Wi-Fi positioning . As of July 2023 , 18 GPS satellites broadcast L5 signals, which are considered pre-operational prior to being broadcast by
13653-408: Was elected governor a second time and kept the office for ten years. Effective with the 1986 election, Arkansas had changed its gubernatorial term of office from two to four years. During his term, he helped transform Arkansas's economy and improved the state's educational system. For senior citizens , he removed the sales tax from medications and increased the home property-tax exemption. He became
13776-477: Was going to do about AIDS , to which Clinton replied, "I feel your pain". The televised exchange led to AIDS becoming an issue in the 1992 presidential election. On April 4, then candidate Clinton met with members of ACT UP and other leading AIDS advocates to discuss his AIDS agenda and agreed to make a major AIDS policy speech, to have people with HIV speak to the Democratic Convention , and to sign onto
13899-595: Was inducted into the U.S. Air Force Space and Missile Pioneers Hall of Fame at Lackland A.F.B., San Antonio, Texas, March 2, 2010, for his role in space technology development and the engineering design concept of GPS conducted as part of Project 621B. In 1998, GPS technology was inducted into the Space Foundation Space Technology Hall of Fame . On October 4, 2011, the International Astronautical Federation (IAF) awarded
14022-577: Was insisting that Democrats "should no longer feel guilty about protecting the innocent". During Clinton's final term as governor, Arkansas performed its first executions since 1964 (the death penalty had been reinstated in 1976). As Governor, he oversaw the first four executions carried out by the state of Arkansas since the death penalty was reinstated there in 1976: one by electric chair and three by lethal injection . To draw attention to his stance on capital punishment, Clinton flew home to Arkansas mid-campaign in 1992, in order to affirm in person that
14145-621: Was launched in 1969. With these parallel developments in the 1960s, it was realized that a superior system could be developed by synthesizing the best technologies from 621B, Transit, Timation, and SECOR in a multi-service program. Satellite orbital position errors, induced by variations in the gravity field and radar refraction among others, had to be resolved. A team led by Harold L. Jury of Pan Am Aerospace Division in Florida from 1970 to 1973, used real-time data assimilation and recursive estimation to do so, reducing systematic and residual errors to
14268-539: Was never considered as such by the GPS Joint Program Office (TRW may have once advocated for a different navigational system that used that acronym). With the individual satellites being associated with the name Navstar (as with the predecessors Transit and Timation), a more fully encompassing name was used to identify the constellation of Navstar satellites, Navstar-GPS . Ten " Block I " prototype satellites were launched between 1978 and 1985 (an additional unit
14391-467: Was not until Clinton turned 15 that he formally adopted the surname Clinton as a gesture toward him. Clinton has described his stepfather as a gambler and an alcoholic who regularly abused his mother and half-brother, Roger Clinton Jr. The physical abuse only ceased after a then-14-year-old Bill challenged his stepfather to "stand and face" him, though the verbal/emotional abuse continued. Bill would eventually forgive Roger Sr. for his abusive actions near
14514-611: Was planning to attend law school in the U.S. and knew he might lose his deferment. Clinton tried unsuccessfully to obtain positions in the National Guard and the Air Force officer candidate school , and he then made arrangements to join the Reserve Officers' Training Corps (ROTC) program at the University of Arkansas . He subsequently decided not to join the ROTC, saying in a letter to
14637-537: Was popular with the public. Two days after taking office, on January 22, 1993—the 20th anniversary of the U.S. Supreme Court decision in Roe v. Wade —Clinton reversed restrictions on domestic and international family planning programs that had been imposed by Reagan and Bush. Clinton said abortion should be kept "safe, legal, and rare"—a slogan that had been suggested by political scientist Samuel L. Popkin and first used by Clinton in December 1991, while campaigning. During
14760-515: Was seen as justification for the billions of dollars it would cost in research, development, deployment, and operation of a constellation of navigation satellites. During the Cold War arms race , the nuclear threat to the existence of the United States was the one need that did justify this cost in the view of the United States Congress. This deterrent effect is why GPS was funded. It is also
14883-770: Was still married to his fourth wife. Virginia traveled to New Orleans to study nursing soon after Bill was born, leaving him in Hope with her parents Eldridge and Edith Cassidy, who owned and ran a small grocery store. At a time when the southern United States was racially segregated , Clinton's grandparents sold goods on credit to people of all races. In 1950, Bill's mother returned from nursing school and married Roger Clinton Sr. , who co-owned an automobile dealership in Hot Springs, Arkansas , with his brother and Earl T. Ricks . The family moved to Hot Springs in 1950. Although he immediately assumed use of his stepfather's surname, it
15006-533: Was the first time I encountered the idea that liberal sensitivities weren't enough and you had to do something about such things". Clinton was a member of the Oxford University Basketball Club and also played for Oxford University's rugby union team. While Clinton was president in 1994, he received an honorary Doctor of Civil Law degree and a fellowship from the University of Oxford , specifically for being "a doughty and tireless champion of
15129-520: Was ultimately used to determine the orbit of the GPS constellation. On February 12, 2019, four founding members of the project were awarded the Queen Elizabeth Prize for Engineering with the chair of the awarding board stating: "Engineering is the foundation of civilisation; ...They've re-written, in a major way, the infrastructure of our world." The GPS satellites carry very stable atomic clocks that are synchronized with one another and with
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