Method and device for compensation of the speed of the clutter in a doppler radar coherent a speed variable ambiguous

摘要

The invention relates to the doppler radar consistent emitting pulses by bursts and having a variable speed is ambiguous of a burst to the next. / p & & p & the invention lies in the fact that, in order to compensate for the speed of the clutter, is first determined in the course of a burst of order i, the variation of the phase phi r 1 of one period to the next, which is due to the clutter in a well determined distance. Then, this variation of phase phi r 1 is placed in memory 13 and is used in the course of each of the periods of the next burst in order to modify the phase 14 of the received signal of the clutter in the same distance compartment so as to move it towards the doppler frequency band of frequencies zero, which corresponds to the zone of rejection of the filter for eliminating fixed echoes 15. / p & & p & the invention is applicable to the doppler radar consistent with pulses.