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FPS-117
The AN/FPS-117 is an L-band active electronically scanned array (AESA) 3-dimensional air search radar first produced by GE Aerospace in 1980 and now part of Lockheed Martin. The system offers instrumented detection at ranges on the order of and has a wide variety of interference and clutter rejection systems. The system was originally developed as part of the "Seek Igloo/Seek Frost" effort to replace the older radar systems of the DEW line with designs that could be operated remotely and require much less maintenance as part of DEW's replacement, the American-Canadian North Warning System (NWS). Implementation of the NWS resulted in a reduction in operations and maintenance spending by up to 50% compared to previous systems. GE made a number of modifications to the basic design to better tailor it to different roles. To fill a need for the US Marine Corps, GE developed the transportable AN/TPS-59, and later combined design elements to produce the smaller AN/TPS-77 which is even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Warning System
The North Warning System (NWS) is a joint United States and Canadian early-warning radar system for the atmospheric air defense of North America. It provides surveillance of airspace from potential incursions or attacks from across North America's polar region. It replaced the Distant Early Warning Line system in the late 1980s. Overview The NWS consists of both long range AN/FPS-117 and short range AN/FPS-124 surveillance radars, operated and maintained by North American Aerospace Defense Command (NORAD). There are 13 long range sites and 36 short range sites. In Canada, the station sites are owned or leased by the Government of Canada, which also owns most of the infrastructure. The radars and tactical radios are owned by the United States Air Force. The Alaska Regional Operations Control Center (ROCC) at Elmendorf AFB, Alaska controls the stations in Alaska; the Canada East and Canada West Regional Operations Control Centres (ROCCs) at CFB North Bay, Ontario control the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/FPS-124
The AN/FPS-124 is an unattended radar (UAR) providing short range, Doppler radar surveillance of airborne targets. It provides target information to the Regional Operations Control Center (ROCC), and employs built-in-test, performance monitoring/fault isolation and system redundancy enabling it to reconfigure itself when fault detection occurs. The AN/FPS-117 and AN/FPS-124 form an array of radars stretching across North America from Alaska, United States to Labrador, Canada. This North Warning System The North Warning System (NWS) is a joint United States and Canadian early-warning radar system for the atmospheric air defense of North America. It provides surveillance of airspace from potential incursions or attacks from across North America' ... is designed to provide long-range detection and coverage for drug interdiction support and tactical command and control. Implementation of the North Warning System has resulted in a reduction in Operations and Maintenance (O&M) spendin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DEW Line
The Distant Early Warning Line, also known as the DEW Line or Early Warning Line, was a system of radar stations in the northern Arctic region of Canada, with additional stations along the north coast and Aleutian Islands of Alaska (see Project Stretchout and Project Bluegrass), in addition to the Faroe Islands, Greenland, and Iceland. It was set up to detect incoming bombers of the Soviet Union during the Cold War, and provide early warning of any sea-and-land invasion. The DEW Line was the northernmost and most capable of three radar lines in Canada and Alaska. The first of these was the joint Canadian-United States Pinetree Line, which ran from Newfoundland to Vancouver Island just north of the Canada–United States border, but even while it was being built there were concerns that it would not provide enough warning time to launch an effective counterattack. The Mid-Canada Line (MCL) was proposed as an inexpensive solution using bistatic radar. This provided a "trip wir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marconi Martello
Martello is a family of phased array radar systems developed by Marconi Electronic Systems in the 1970s and introduced operationally in the early 1980s. They provided long-range early warning capabilities but also had the accuracy needed for interception plotting and "putting on" of other weapons systems like surface-to-air missiles. The name comes from the Martello towers that provided defence in earlier years. A key feature of the new design was its solution to measuring altitude. Earlier mechanically scanned 3D radars used multiple feed horns in a vertical stack, but this was difficult to make in a mobile form; when moved they would go out of alignment. Newer phased arrays used electronic phase shifters to sweep up and down to measure angles, but this required expensive electronics. Martello used fixed phase shifters to produce a pattern of eight stacked beams, recreating the multiple feed horn pattern in a small box that was inexpensive to implement. The system was initia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AN/FPS-19
The AN/FPS-19 was a long-range search radar developed for the NORAD Distant Early Warning Line (DEW Line) by Raytheon. It was an L-band system working between 1220 to 1350 MHz produced by a 500 kW magnetron. Two such systems were placed back-to-back, one with an antenna that produced a narrow beam to improve range for long-range detection, and the second with a wider fan-shaped beam to cover higher angles at shorter ranges. The former could detect bomber-sized targets to about and the latter covered up to altitude. The system was developed from the AN/TPS-1, which dated to the late World War II era. Raytheon adapted it to the long-range role by designing much larger antenna systems and other modifications. The first examples activated in 1957, along with the AN/FPS-23 radars that provided low-altitude coverage between the stations. The AN/FPS-23 were removed in 1963, and the FPS-19's were scheduled to be replaced by the somewhat more powerful AN/FPS-30. The declining ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phase Shifter
A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. Phase shifters are used in phased arrays. Classification Active versus passive Active phase shifters provide gain, while passive phase shifters are lossy. * Active: ** Applications: active electronically scanned array (AESA), passive electronically scanned array (PESA) ** Gain: The phase shifter amplifies while phase shifting ** Noise figure (NF) ** Reciprocity: not reciprocal * Passive: ** Applications: active electronically scanned array (AESA), passive electronically scanned array (PESA) ** Loss: the phase shifter attenuates while phase shifting ** NF: NF = loss ** Reciprocity: reciprocal Analog versus digital * Analog phase shifters provide a continuously variable phase shift or time delay. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brian Mulroney
Martin Brian Mulroney ( ; born March 20, 1939) is a Canadian lawyer, businessman, and politician who served as the 18th prime minister of Canada from 1984 to 1993. Born in the eastern Quebec city of Baie-Comeau, Mulroney studied political science and law. He then moved to Montreal and gained prominence as a labour lawyer. After placing third in the 1976 Progressive Conservative leadership election, he was appointed president of the Iron Ore Company of Canada in 1977. He held that post until 1983, when he successfully became leader of the Progressive Conservatives. He then led the party to a landslide victory in the 1984 federal election, winning the second-largest percentage of seats in Canadian history (at 74.8 percent) and receiving over 50 percent of the popular vote. Mulroney later won a second majority government in 1988. Mulroney's tenure as prime minister was marked by the introduction of major economic reforms, such as the Canada–United States Free Trade Agreem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shamrock Summit
The Shamrock Summit was the colloquial name given to the March 17–18, 1985 meeting between Canadian Prime Minister Brian Mulroney and US President Ronald Reagan in Quebec City. It gained this nickname because of the Irish background of the two leaders and because the meeting started on St. Patrick's Day. The summit was capped by a televised gala, which ended with Mulroney, Reagan and their wives singing'' When Irish Eyes are Smiling'', which publicly exemplified the camaraderie between the two leaders. Documents later revealed that American officials saw the summit as an excellent chance to mend relations between the two countries in the post-Pierre Trudeau era. Among the many issues discussed in a busy 24-hour schedule were military planning, upgrading the DEW line to use modern electronics, a landmark agreement on the control of acid rain, and the formal signing of the Pacific Salmon Treaty and the "Canada-US Declaration on Goods and Services", the first major step towards th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NORAD
North American Aerospace Defense Command (NORAD ), known until March 1981 as the North American Air Defense Command, is a combined organization of the United States and Canada that provides aerospace warning, air sovereignty, and protection for Canada and the continental United States. Headquarters for NORAD and the NORAD/United States Northern Command (USNORTHCOM) center are located at Peterson Space Force Base in El Paso County, near Colorado Springs, Colorado. The nearby Cheyenne Mountain Complex has the Alternate Command Center. The NORAD commander and deputy commander (CINCNORAD) are, respectively, a United States four-star general or equivalent and a Canadian lieutenant-general or equivalent. Organization CINCNORAD maintains the NORAD headquarters at Peterson Space Force Base near Colorado Springs, Colorado. The NORAD and USNORTHCOM Command Center at Peterson SFB serves as a central collection and coordination facility for a worldwide system of sensors designed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Electric
General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energy, digital industry, additive manufacturing and venture capital and finance, but has since divested from several areas, now primarily consisting of the first four segments. In 2020, GE ranked among the Fortune 500 as the 33rd largest firm in the United States by gross revenue. In 2011, GE ranked among the Fortune 20 as the 14th most profitable company, but later very severely underperformed the market (by about 75%) as its profitability collapsed. Two employees of GE – Irving Langmuir (1932) and Ivar Giaever (1973) – have been awarded the Nobel Prize. On November 9, 2021, the company announced it would divide itself into three investment-grade public companies. On July 18, 2022, GE unveiled the brand names of the companies it will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rome Laboratory
Rome Laboratory (Rome Air Development Center until 1991) is the US "Air Force 'superlab' for command, control, and communications" research and development and is responsible for planning and executing the USAF science and technology program. Organization Rome Lab includes or included the following entities: ;Information Directorate: The Information Directorate develops information technologies for air, space and ground systems, partnering with other federal agencies, allied nations, state and local governments, and more than 50 major universities. The Rome Laboratory Technical Library is located at 525 Brooks Road, Rome, NY. ;Sensors Directorate: Moved to Wright-Patterson AFB under the 1995 Base Realignment and Closure Commission Divisions and laboratories of the former Rome Air Development Center (RADC) included the Electronic Warfare Laboratory, High Power Laboratory, Photonics Laboratory, 1968 Electronics Laboratory (dedicated 25 October), RADC Systems Division, and the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
