Radar system with continuous sequencing means

Claim 1

A RADAR SYSTEM COMPRISING A RADAR STATION HAVING MEANS FOR TRANSMITTING A TRAIN OF RECURRENT RADAR SIGNALS TOWARDS A TARGET AND MEANS FOR RECEIVING RESPONSE SIGNALS FROM THE TARGET, TIME-COMPARATOR MEANS AT THE STATION HVING TWO INPUTS, ONE OF SAID INPUTS BEING CONNECTED TO SAID RECEVING MEANS AND HAVING AN OUTPUT, AS VARIABLE FOLLOWUP DEVICE CONNECTING THE OTHER OF SAID INPUTS TO SAID TRANSMITTING MEANS, AND SERVO-MEANS CONNECTED TO THE COMPARATOR OUTPUT AND CONNECTED TO VARY SAID FOLLOW-UP DEVICE IN A SENSE TO REDUCE THE COMPARATOR OUTPUT SIGNAL FOR TRACKING THE TARGET AND DERIVING AN INDICATION OF STATION-TO-TARGET DISTANCE, AND VARIABLE DELAY MEANS INTERPOSED IN THE PATH OF THE TRANSMITTED SIGNALS AT SAID STATION AND CONNECTED FOR OPERATION BY SAID SERVO MEANS WHEREBY TO VARY THE TRANSMISSION TIMING OF THE RECURRENT SIGNALS IN PROPORTION TO VARIATIONS IN SAID DISTANCE INDICATION AND WHEREBY THE SIGNALS ARE RECEIVED AT THE TARGET AT GENERALLY UNIFORM INTERVALS SUBSTANTIALLY INDEPENDENT OF VARIATIONS IN STATION-TO-TARGET DISTANCE.