Doppler correction in a frequency diversity frequency jittered pulse doppler radar by means of digital phase computation

Claim 1

DOPPLER CORRECTION IN A PULSED DOPPLER TRACKING RADAR BY MEANS OF DIGITAL PHASE COMPUTATION COMPRISING: A PULSE DOPPLER RADAR RECEIVER FOR RECEIVING ECHO PULSE DOPPLER SIGNALS OF A TARGET FROM TRANSMITTED PULSES AND CONVERTING EACH ECHO SIGNAL TO DIGITAL WORD REPRESENTATIVE OF TARGET VELOCITY; A DIGITAL REGISTER COUPLED TO RECEIVE EACH SAID DIGITAL ECHO WORD; AN ACCUMULATOR COUPLED TO SAID REGISTER AND PULSED BY A TRANSMITTER SYNCHRONIZING SOURCE TO SUM THE DOPPLER DIGITAL WORDS AT THE PULSED RATE TO PRODUCE AN ACCUMULATED DIGITAL WORD REPRESENTATIVE OF THE DISTANCE PROPORTIONAL TO THE MOVEMENT OF THE TARGET FROM THE BEGINNING OF THE DWELL TO THE TIME OF THE PULSE; AND A COMPLEMENTER ADAPTED TO BE SELECTIVELY SWITCHABLE IN AND OUT OF THE OUTPUT OF SAID ACCUMULATOR WHEREBY THE ACCUMULATOR OUTPUT REPRESENTS THE DIGITAL PHASE SHIFT WORD PRODUCED BY TARGET MOVEMENT, THE DIGITAL PHASE SHIFT WORD BEING SELECTABLY PRESENTED BY ITS COMPLEMENT IN ACCORDANCE WITH THE EXISTENCE OF APPROACHING AND RECEDING TARGETS.