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TSR-2 XR220 at RAF Museum Cosford, 2002. Ferranti developed the first terrain-following radar specifically for the TSR-2. Terrain-following radar (TFR) is a military aerospace technology that allows a very-low-flying aircraft to automatically maintain a relatively constant altitude above ground level and therefore make detection by enemy radar more difficult.
The radar mile is the time it takes for a radar pulse to travel one nautical mile, reflect off a target, and return to the radar antenna. Since a nautical mile is defined as 1,852 m, then dividing this distance by the speed of light (299,792,458 m/s), and then multiplying the result by 2 yields a result of 12.36 μs in duration.
AN/APQ-170 terrain-following radar by Emerson Electric Company for MC-130H; AN/APQ-171 improved AN/APG-146 terrain-following radar by Texas Instruments for F-111C/F; AN/APQ-172 improved AN/APQ-162 terrain-following radar for RF-4C; AN/APQ-173 derivative of AN/APQ-148 radar for the proposed A-6F/G; AN/APQ-174 for the MH-60K and MH-47E helicopters
The radar can operate in terrain-clearance, terrain-avoidance, air-to-air ranging and cross-scan modes, the latter combining ground-mapping or terrain-avoidance with terrain-following. A terrain storage facility permits the radar to have a reduced duty cycle, thereby reducing the probability of detection by enemy ESM equipment.
Magyar; 日本語; Polski ... Terrain-following radar; U. Uttam AESA Radar; Z. Zaslon; Zhuk (radar) This page was last edited on 25 March 2013, at 07:41 (UTC). Text ...
The terrain return is the signal returned from the ground surface when sensed by various remote sensing systems, e.g., radars.. One may distinguish two components of terrain return: the wanted signal (e.g., when generating a radar map of the terrain or when used for terrain avoidance and collision detection) and ground clutter, an unwanted signal that interferes with sensing of various objects ...
Radar range and wavelength can be adapted for different surveys of bird and insect migration and daily habits. They can have other uses too in the biological field. "MERLIN Avian Radar System for Bird Activity Monitoring and Mortality Risk Mitigation" (PDF). Insect radar. Surveillance radar (mostly X and S band, i.e. primary ATC Radars)
And for the same examples : the radar horizon for the radar at a 1-mile (1.6 km) altitude will be 102-mile (164 km) and the one at 75 feet (23 m) will be 12-mile (19 km). Furthermore, layers with an inverse trend of temperature or humidity cause atmospheric ducting , which bends the beam downward or even traps radio waves so that they do not ...