AN/FPS-118 Over-The-Horizon-Backscatter (OTH-B) Radar
网页The U.S. Air Force's over-the-horizon-backscatter (OTH-B) air defense radar system is by several criteria the largest radar system in the world. Six one-million-watt OTH radars see far beyond the...
Over-the-horizon radar - Wikipedia
网页Over-the-horizon radar (OTH), sometimes called beyond the horizon radar (BTH), is a type of radar system with the ability to detect targets at very long ranges, typically hundreds to thousands of kilometres, beyond the radar horizon, which is …
AN/FPS-118 Over-The-Horizon-Backscatter (OTH-B) Radar
网页2011年12月11日 · AN/FPS-118 Over-The-Horizon-Backscatter (OTH-B) Radar. The USAF’s Rome Laboratory had the first US success with their AN/FPS-118 OTH-B. A prototype with a 1 MW transmitter and a separate receiver was installed in Maine, offering coverage over a 60 degree arc between 900 to 3300 km. A permanant transmitting facility was then built in …
USAF Considering Reuse of Previous Backscatter Sites
网页2023年3月30日 · The U.S. Air Force said that it is considering reuse of the previous Over the Horizon Backscatter (OTH-B) radar sites to augment the U.S.-Canadian North Warning System (NWS).
Over-the-Horizon Backscatter Radar [OTH-B] - GlobalSecurity.org
网页Over-the-Horizon Backscatter Radar [OTH-B] China aspires to use Over-the-Horizon (OTH) sky-wave radar systems to target aircraft carriers. These systems could be used in an early warning...
Next Generation Over-the-Horizon Radar | Raytheon
网页Raytheon offers an American-made, next-generation over-the-horizon radar to answer the U.S. and Canada’s call for a system that can detect and track low-altitude cruise missile threats. Over-the-Horizon Radars use high frequency radio raves and bounce the signal off the ionosphere to look for targets using a “top-down” approach.
Christmas Valley Air Force Station - The Oregon Encyclopedia
网页The OTH-B system was to provide long-range (up to 3,300 km) radar coverage for U.S. air defense. By bouncing radar beams off the atmosphere, the system was designed to detect inbound missiles or bombers launched by hostile forces.
Overview — AN/FPS-118 OTH-B radar - Military Periscope
网页The AN/FPS-118 Over-The-Horizon Backscatter (OTH-B) radar system consisted of a transmitter and a receiver located approximately 100 miles (161 km) apart. The OTH-B used emissions bounced off the ionosphere to acquire targets up to 2,000 nm (2,303 mi, 3,706 km) away; its dependence on atmospheric conditions was a …
Over-The-Horizon Radar: Better Justification Needed for DOD …
网页1991年1月16日 · Highlights. Pursuant to a congressional request, GAO: (1) examined the Department of Defense's (DOD) plans to use the Air Force's Over-the-Horizon Backscatter (OTH-B) radar for counterdrug purposes; and (2) provided information on the cost, design, acquisition and deployment, missions, and interoperability of …
网页In addition, modest extensions of line-of-sight range can be obtained in this frequency band by using surface wave propagation over the sea. In the Naval Research Laboratory's (NRL) initial development program of HF over-the-horizon (OTH) radar, essentially all of the elemental feasibilities were discovered and demonstrated [1].
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