| 释义 |
radar beacon
radar beaconn. A fixed device that sends or receives, amplifies, alters, and returns a radar signal, permitting a distant receiver to determine its bearing and sometimes its range.radar beacon n (Electronics) a device for transmitting a coded radar signal in response to a signal from an aircraft or ship. The coded signal is then used by the navigator to determine his or her position. Also called: racon ra′dar bea`con
n. a radar device at a fixed location, used as a navigational aid. [1940–45] radar beaconA receiver-transmitter combination that sends out a coded signal when triggered by the proper type of pulse, enabling determination of range and bearing information by the interrogating station or aircraft. Also called RB.Thesaurus| Noun | 1. | radar beacon - a device that, on receiving radar signals, transmits coded signals in response to help navigators determine their positionraconelectronic signal - a signal generated by electronic means |
Radar Beacon
radar beacon[′rā‚där ‚bē·kən] (navigation) A radar receiver-transmitter that transmits a strong coded radar signal whenever its radar receiver is triggered by an interrogating radar on an aircraft or ship; the coded beacon reply can be used by the navigator to determine his own position in terms of bearing and range from the beacon. Also known as racon; radar transponder. Radar Beacon a transponder used as an aid to navigation that works in conjunction with the radar sets on aircraft and ships. Activated by the signals sent out from a radar set on board a ship or plane, the beacon responds with coded signals, which enable the radar set to determine the beacon’s direction and distance. Radar beacons are used in radio navigation to determine the position of an object with respect to the known position of the beacon and to provide for an accurate approach by these objects to the beacon’s site. radar beacon system A radar system in which the object to be detected is fitted with cooperative equipment in the form of a radio transponder (receiver/transmitter). Radio pulses are transmitted from the searching interrogator (transmitter/receiver) site, received in the cooperative equipment, and used to trigger a distinctive transmission from the transponder. This latter transmission rather than a reflected signal is received full strength back at the interrogator site. Also called a radar beacon transponder or a radar beacon.See RACON
See RACONradar beacon
Synonyms for radar beaconnoun a device that, on receiving radar signals, transmits coded signals in response to help navigators determine their positionSynonymsRelated Words |