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NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...
Cape TRACON. The Cape TRACON ( K90) [1] [2] is a radar approach facility located at Joint Base Cape Cod, [3] Massachusetts next to the airfield for Coast Guard Air Station Cape Cod. It is operated by the Federal Aviation Administration (FAA) . The primary responsibility of Cape Approach is the safe, orderly, and expeditious flow of arrival ...
Weatherscan was an American digital cable and satellite television network owned by Allen Media Group. A spinoff of The Weather Channel, Weatherscan featured uninterrupted local weather information in graphical format on a continuous loop that was generated by an IntelliStar unit installed at the cable provider's headend; unlike The Weather Channel, Weatherscan did not feature on-air talent of ...
The Sea-Based X-Band Radar underway. The Sea-Based X-Band Radar ( SBX-1) is a floating, self-propelled, mobile active electronically scanned array early-warning radar station designed to operate in high winds and heavy seas. It was developed as part of the United States Department of Defense Missile Defense Agency's (MDA) Ballistic Missile ...
Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
Synthetic-aperture radar ( SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as landscapes. [1] SAR uses the motion of the radar antenna over a target region to provide finer spatial resolution than conventional stationary beam-scanning radars.
Capella Space is an American space company with satellite and declassified SAR data solutions for government and commercial use. It offers space-based radar Earth observation satellites equipped with synthetic-aperture radar that can collect imagery through clouds and at night. [1] The company is based in San Francisco, California with offices ...
The history of radar (where radar stands for radio detection and ranging) started with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell 's seminal work on electromagnetism.