| 单词 | reply pulse |
| 释义 | > as lemmasreply pulse 5. Radar. More fully reply pulse. A signal sent by a transponder in response to interrogation. ΘΚΠ society > communication > telecommunication > radio communications > [noun] > other methods or operations > radar > signals or pulses reply1945 interrogation1946 squitter1958 monopulse1959 1945 Army & Navy Jrnl. (U.S.) 18 Aug. 1534/4 Transponder, the unit in the IFF system which receives the challenge and automatically transmits the reply. 1945 R. Watson-Watt in Nature 15 Sept. 319/2 The primary radio pulses ‘interrogating’ the mobile craft automatically release from it a series of reinforced, coded, and conveniently frequency-displaced reply pulses. 1963 R. S. H. Boulding Princ. & Pract. Radar (ed. 7) xxii. 471 Measurement of the time from the commencement of the interrogating pulse to the receipt of the beginning of the reply pulse enables the distance between the aircraft and the beacon to be determined. 2007 D. J. Clausing Aviator's Guide Navigation (ed. 4) iii. 44 The ground unit has to respond to each interrogation with a reply pulse. < as lemmas |
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