Radar has a continuous wave modulated in frequency and its application to a probe altimeter

摘要

Equipment radar has a continuous wave modulated in frequency, which makes it possible to provide a precise measurement of the relative distance of separation of an object detected. / p & & p & this equipment comprises a - assembly 10 tx and a receiver rx under - assembly which are duplexes on a common antenna 1. The receiver comprises a melangeur electrolyte 5 in the reference which is a phase shifting inserted adjustable 6, and an amplifier a audio frequency 8 having a second input which is connected by means of a modulator of the region 9 to the list 4 of the modulation signal at the frequency of the sender. This modulator of the level has a control input of which is sensitive to a dc voltage signal adjustable in order to cancel the effects of interference obtained by means of the coupling signal receiver 10 - / p & & p & the invention finds its application in the probes altimetric radio for missiles, 2002, radar and the like.