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Radar is a system that uses radio waves to determine the distance (), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method [1] used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.
Radar is an acronym for "radio detection and ranging", referring to a system for using radio waves to detect and track the position of objects. Radar may also refer to:
The acronym RADAR (for RAdio Detection And Ranging) was coined by the U.S. Navy in 1940, and the subsequent name "radar" was soon widely used. The XAF and CXAM search radars were designed by the Naval Research Laboratory, and were the first operational radars in the US fleet, produced by RCA.
AN/APS-21 search radar by Westinghouse Electric (1886) for part of AN/APQ-35 for Douglas F3D Skynight and Gloster Meteor NF; AN/APS-23 search radar by Western Electric for Convair B-36 North American B-45C Tornado Boeing B-47E Stratojet B-50 Superfortress B-52 Stratofortress Lockheed C-130 Hercules and Boeing C-135 Stratolifter part of AN/ASB-3
An abbreviation for “postscript” PIN. Personal identification number. RADAR. Radio detecting and ranging. RIP. Rest in peace (this can also be an initialism, as some people say “r” “i ...
The radar measures the distance to the reflector by measuring the time of the round trip from emission of a pulse to reception, dividing this by two, and then multiplying by the speed of light. To be accepted, the received pulse has to lie within a period of time called the range gate .
A Doppler radar is a specialized radar that uses the Doppler effect to produce velocity data about objects at a distance. [1]
Abbreviation Term Notes SAF Sustainable aviation fuel: SAIL Specific assurance and integrity level: SAR Search and rescue: SAR Smart ACMS Recorder SAR Surveillance Approach Radar SAS stability augmentation system: SAT Static Air Temperature Or: Outside air temperature (OAT) SATCOM Satellite communication: SATNAV Satellite navigation: SB service ...