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The dipole antenna of a radar altimeter of 1947. A radar altimeter (RA), also called a radio altimeter (RALT), electronic altimeter, reflection altimeter, or low-range radio altimeter (LRRA), measures altitude above the terrain presently beneath an aircraft or spacecraft by timing how long it takes a beam of radio waves to travel to ground, reflect, and return to the craft.
1L222 Avtobaza exhibited at the 2014 Engineering Technologies International Forum [] in Zhukovsky, Russia.. Kvant 1L222 Avtobaza is an ELINT system designed to detect side looking airborne radars, air-to-ground fire-control radars and low-altitude flight control radars, as well as to provide intelligence data for the 1L125M APUR.
AN/MPQ-35 PAR (Pulse Acquisition Radar) high/medium-altitude threat detection radar for MIM-23 Hawk surface-to-air missile system. AN/MPQ-43 mobile High Power Acquisition Radar (HIPAR) for Nike ADM. AN/MPQ-64 Sentinel; AN/MSQ-1 Close Support Control Set for Radar Bomb Scoring (RBS) AN/MSQ-1A used for Matador Automatic Radar Control
It reduces radar detection by obscuring radar signals and can form a microwave shield over platforms and assets. Microwave Obscurant Chaff (MOC) is carried on a medium range chaff rocket. When the rocket is fired, it creates a microwave obscurant cloud that spreads over a big enough region and lasts long enough to provide an effective defense ...
Sensory Aid Device for visually impaired individuals to navigate their environments. Device sent out pulses of light which, when reflected off of objects around the user, would give the user an auditory cue [159] AN/PVQ-31: Advanced Combat Optical Gunsight (ACOG) U.S. Marine Corps, U.S. Army [169] Trijicon
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: RAdio Detection And Ranging RAI Radio altimeter indicator RAIM Receiver Autonomous Integrity Monitoring: Or: remote autonomous integrity monitoring RALT Radar or radio altimeter: RAREPS Weather Radar Reports [6] Provided by Air Traffic Controllers RAS rectified air speed RA(T) restricted area (temporary) RAT ram air turbine: RCO
Pulse-Doppler radar sensors are therefore more suited for long-range detection, while FMCW radar sensors are more suited for short-range detection. Monopulse : A monopulse feed network, as shown in Fig. 2, increases the angular accuracy to a fraction of the beamwidth by comparing echoes, which originate from a single radiated pulse and which ...