Arrangement enabling the contrast to be improved between the main echo video-frequency signal and a secondary echo video-frequency signal received by a pulse compression radar

摘要

An arrangement including an integrating circuit connected to the detection circuit of a pulse compression radar. The output of the integrating circuit is connected to a display tube of the radar. The integrating circuit has a control input connected to a distance shifting circuit. The distance shifting circuit is controlled by a first distance coincidence circuit operated by a first distance designating circuit and allows the secondary alternating lobes of the main video-frequency echo signal to be integrated at predetermined times for a period equal to the length of the central peak of a secondary echo signal. A second distance coincidence circuit operated by a second distance designating circuit allows the integration to be locked on to the central peak of the secondary echo.