- radar board
- 雷達測繪板[圖表]
English-Chinese dictionary. 2013.
radar board
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Radar — For other uses, see Radar (disambiguation). A long range radar antenna, known as ALTAIR, used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll … Wikipedia
Radar warning receiver — Typically fitted to military aircraft, radar warning receivers (RWR) detect the radio emissions of radar systems, whether ground based or on board other aircraft. The system is often capable of classifying the source of the radar by type (Pulsed… … Wikipedia
Radar speed sign — Standard radar speed sign with block letters. Pictured with solar panel. A radar speed sign (also called a driver feedback sign, radar signs, Vehicle Activated Sign (UK), changeable message sign, Your Speed sign, radar feedback sign, speed radar… … Wikipedia
Radar navigation — Marine radar systems can provide very useful navigation information in a variety of situations. When the vessel is within radar range of land or special radar aids to navigation, the navigator can take distances and angular bearings to charted… … 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
Space-Based Radar — refers to space borne radar systems that may have any of a variety of purposes. A number of earth observing radar satellites, such as RadarSat, have employed synthetic aperture radar (SAR) to obtain terrain and land cover information about the… … Wikipedia
Automatic Radar Plotting Aid — A maritime radar with Automatic Radar Plotting Aid (ARPA) capability can create tracks using radar contacts. The system can calculate the tracked object s course, speed and closest point of approach (CPA), thereby knowing if there is a danger of… … Wikipedia
Synthetic aperture radar — (SAR) is a form of radar in which the highly directional (and thus very large) rotating antenna used by conventional radar is replaced with many low directivity small stationary antenna positions scattered over some area near or around the target … Wikipedia
Secondary surveillance radar — SSR antenna of Deutsche Flugsicherung at Neubrandenburg, in Mecklenburg/Western Pomerania Secondary surveillance radar (SSR)[1] is a radar system used in air traffic control (ATC), that not only detects an … Wikipedia
H2S radar — The H2S radar was used in bombers of RAF Bomber Command. It was designed to identify targets on the ground for night and all weather bombing. The transmitter/receiver equipment was officially known as TR3159 (H2S Mk I/ASV VIB) or TR3191 (H2S Mk… … Wikipedia
P-18 radar — in Germany with Parol IFF Country of origin … Wikipedia
