secondary radar

[′sek·ən‚der·ē ′rā‚där] (electronics) Radar which receives pulses transmitted by an interrogator and makes a return transmission (usually on a different frequency) by its transponder, as opposed to a primary radar which receives pulses returned from illuminated objects.

secondary radar

A radar system wherein a radio signal transmitted from the radar station initiates the transmission of a radio signal from another station (ICAO). Examples of secondary radars are IFF (identification friend or foe) and secondary surveillance radar. See identification friend or foe.

单词	secondary radar
释义	secondary radar secondary radar [′sek·ən‚der·ē ′rā‚där] (electronics) Radar which receives pulses transmitted by an interrogator and makes a return transmission (usually on a different frequency) by its transponder, as opposed to a primary radar which receives pulses returned from illuminated objects. secondary radar A radar system wherein a radio signal transmitted from the radar station initiates the transmission of a radio signal from another station (ICAO). Examples of secondary radars are IFF (identification friend or foe) and secondary surveillance radar. See identification friend or foe.
随便看	cryptologic carrion tactical action software system cryptologic carry-on program cryptologic combat support console cryptologic combat support system cryptologic communications management center cryptologic electronic surveillance measure cryptologic electronic warfare support measures cryptologic field trainer editor and compiler editor and publisher editor-at-large editor auto completion edit orbital element set editor dictionary file editorial editorial advisory committee editorial advisory panel editorial alteration editorial and publications unit editorial assistant editorial bautista independiente editorial board editorial comment editorial committee of the swedish institutes editorial de las letras mudas