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Radar altimeters are frequently used by commercial aircraft for approach and landing, especially in low-visibility conditions (see instrument flight rules) and automatic landings, allowing the autopilot to know when to begin the flare maneuver. Radar altimeters give data to the autothrottle which is a part of the Flight Computer.
AN/SPS-64 Navigation radar, a surface navigation and search radar, made by Raytheon and used both commercially (brand name Mariner's Pathfinder) and by navies worldwide. [ citation needed ] AN/SPS-65 Development of AN/SPS-58 by Westinghouse as a low altitude radar that is part of the Mark 91 Fire Control System for the Sea Sparrow air defense ...
Pages in category "Earth satellite radar altimeters" The following 19 pages are in this category, out of 19 total. This list may not reflect recent changes. C.
Radar altimeter technology is also used in terrain-following radar allowing combat aircraft to fly at very low height above the terrain. After extensive research and experimentation, it has been shown that "phase radio-altimeters" are most suitable for ground effect vehicles, as compared to laser, isotropic or ultrasonic altimeters. [3]
The International Space Station (ISS) has long been used as a central satellite platform for other sensors, including Earth observation sensors. For example: LIS, SAGE III, TSIS-I, ECOSTRESS, GEDI, OCO-3, Diwata-1, and HICO. Jason-3: Active NASA and CNES: 2016 Radar altimeter used to monitor ocean surface height. KhalifaSat: Active MBRSC: 2018
The Cassini radar was a multimode system and could operate as Synthetic Aperture Radar, radar altimeter, scatterometer and radiometer. Sounding radars : these are low-frequency (normally, HF - 3 to 30 MHz - or lower) ground-penetrating Radars , used to acquire data about the planet sub-surface structure.
The satellite carried a radar altimeter capable of measuring the distance from the satellite to sea surface with a relative precision of about 5 cm. The initial phase was an 18-month classified Geodetic Mission (GM) have a ground-track with a near-23-day repeat with closure to within 50 kilometers.
A Voyage by Radar by R.C. Newhouse, Radio Development Engineer, published in the Bell Laboratories Record Vol. XXV No. 5 - May 1947, pages 181-189; The History of Radar – RC Newhouse of Bell Labs obtained a patent, and his experiments performed throughout the decade eventually led to the radio altimeter, which became operational in 1937.