terrain avoidance radar

См. также в других словарях:

• terrain-avoidance radar — A special radar that permits aircraft to be flown safely at a preset clearance level. A normal PPI (plan position indicator) radar enables the terrain to be avoided in azimuth rather than in elevation. A specialist terrain avoidance radar, on the …   Aviation dictionary

• Radar altimeter — A radar altimeter, radio altimeter, low range radio altimeter (LRRA) or simply RA measures altitude above the terrain presently beneath an aircraft or spacecraft. This type of altimeter provides the distance between the plane and the ground… …   Wikipedia

• radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …   Universalium

• nonscanning monopulse radar — A terrain radar that provides pitch rate error signals to a command indicator for manual control of aircraft in the pitch axis. The resultant flight path aims to parallel or follow the terrain at a height setting that is adjustable in flight.… …   Aviation dictionary

• Betriebsmodus (Radar) — Der Ausdruck Betriebsmodus definiert bei Radargeräten ein spezielles Signalprofil, welches für eine bestimmte Aufgabe (z. B. Suche nach Luftzielen oder Erfassung von Schiffen auf See) optimiert ist. Die wichtigsten Parameter in diesem Profil sind …   Deutsch Wikipedia

• APQ-181 radar — The AN/APQ 181 is an all weather, low probability of intercept (LPI) radar system designed by Hughes Aircraft (now Raytheon) for the U.S. Air Force B 2A Spirit bomber aircraft. The system was developed in the mid 1980s and entered service in 1993 …   Wikipedia

• Types and uses of radar — Radar has many different types and applications: * Search radars scan a wide area with pulses of short radio waves. They usually scan the area two to four times a minute. The waves are usually less than a meter long. Ships and planes are metal,… …   Wikipedia

• Traffic Collision Avoidance System — The Traffic alert and Collision Avoidance System (or TCAS) is an aircraft collision avoidance system designed to reduce the incidence of mid air collisions between aircraft. It monitors the airspace around an aircraft for other aircraft equipped… …   Wikipedia

• Aircraft collision avoidance systems — Modern aircraft can use several types of collision avoidance systems to prevent unintentional contact with other aircraft, obstacles, or the ground:* Airborne Radar can detect the relative location of other aircraft, and has been in military use… …   Wikipedia

• History of radar — The history of radar starts 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.… …   Wikipedia

• Controlled flight into terrain — CFIT redirects here. For the Canadian radio station in Airdrie, Alberta, see CFIT FM. A piece of the remains of Air New Zealand Flight 901, which crashed in 1979. All 257 people on the plane were killed. Controlled flight into terrain (CFIT)… …   Wikipedia