Simultaneous buildup doppler radar

Claim 1

APPARATUS FOR OBTAINING A PICTURE OF TERRAIN OVER WHICH A VEHICLE IS MOVING INCLUDES MEANS ON THE VEHICLE FOR SENDING OUT ISOTROPICALLY A WAVE PULSE TO ILLUMINATE TERRAIN TO ONE SIDE OF THE VEHICLE, MEANS FOR PICKING UP THE RETURNS FROM SCATTERS ON THE TERRAIN, MEANS FOR STORING THE RETURNS SEPARATED IN RANGE, MEANS FOR REPEATING THE OPERATION OF THE FOREGOING MEANS FOR A SERIES OF N WAVE PULSES, MEANS BEGINNING AT ONE EXTREME OF RANGE FOR PROGRESSIVELY READING OUT IN A SERIES OF DIFFERENT RANGE SWEEPS THE RETURNS FROM THE STORAGE MEANS, MEANS FOR SEPARATING THE RETURNS FROM EACH READ OUT SWEEP AT A GIVEN RANGE INTO RETURNS SEPARATED IN AZIMUTH BY THE DOPPLER SHIFT OF EACH SCATTERER, MEANS CONNECTED TO THE OUTPUT OF THE LAST-NAMED MEANS FOR SHOWING IN PICTURE FORM THE SCATTERERS PROPERLY SEPARATED IN RANGE AND IN AZIMUTH, AND MEANS FOR EFFECTING A REPETITION OF THE OPERATION OF THE FOREGOING MEANS FOR A PLURALITY OF SERIES ON N WAVE PULSES.