Method of automatic compensation of the non-linearity of the slope of the modulation of a radar with frequency modulated continuous wave and radar for its óoeuvre.

摘要

The present invention relates to the radar to a continuous wave is linearly modulated in frequency, referred to as fmcw radars and more particularly those comprising, in the transmission part, a voltage controlled oscillator (22) which generates the transmission signal and a ramp generator (23), causing the frequency modulation signal of said oscillator (22), and, in the reception part, a spectrum analyzer (34), which makes it possible to identify and to separate, in the received signal in the course of a ramp and demodulated by the signal transmission, different frequency bands corresponding to echoes observed. It consists in controlling the shape of the signal of the ramp generator (23) to an optimum of the resolution or the fineness of the frequency spectrum delivered by the spectrum analyzer (34) by means of a shaping circuit (10) is interposed between these two elements (23) and (34).