Abstract: A digital system for processing return energy in a aircraft pulsed doppler radar system which includes a wave energy transmitter and a receiver for detecting the wave energy returned to the receiver by reflection. A digital signal processor develops target and noise information from the return energy and the return energy related information is supplied to a digital computer. The computer determines the range from which the return energy is reflected and provides digital range data. The width of the return energy in the time domain and the amplitude of the return energy are evaluated to provide digital width and digital amplitude data. The return energy is designated as clutter and clutter AGC and blanking signals are generated to control the receiver in response to an evaluated width and amplitude of the return energy above predetermined minimum values.