Radar tracking amplifying system

Claim 1

IN A MONOPULSE RADAR TRACKING SYSTEM COMPRISING AN ANTENNA ARRAY HAVING AN AXIS OF DIRECTIVITY CAPABLE OF BEING ORIENTED IN AZIMUTH AND ELEVATION WITH RESPECT TO A REMOTE REFLECTING OBJECT, MEANS FOR RADIATING HIGH-FREQUENCY PULSES TOWARD SAID OBJECT, MEANS FOR DERIVING FROM EACH ECHO PULSE RECEIVED AT SAID ARRAY A HIGH-FREQUENCY REFERENCE PULSE VOLTAGE AND A PAIR OF HIGH-FREQUENCY SIGNAL PULSE VOLTAGES WHOSE RELATIVE AMPLITUDES AND PHASES WITH RESPECT TO SAID REFERENCE VOLTAGE ARE FUNCTIONS OF THE AZIMUTH AND ELEVATION ANGLES OF SAID OBJECT WITH RESPECT TO SAID AXIS, MEANS FOR SHIFTING THE PHASE OF ONE OF SAID SIGNAL VOLTAGES BY NINETY ELECTRICAL DEGREES, MEANS FOR ALGEBRAICALLY COMBINING SAID OTHER SIGNAL VOLTAGE WITH SAID SHIFTED VOLTAGE TO PRODUCE A RESULTANT ALTERNATING VOLTAGE, A PAIR OF PHASE-STABLE AMPLIFIERS FOR SEPARATELY AMPLIFYING SAID REFERENCE VOLTAGE AND SAID RESULTANT VOLTAGE, A PAIR OF PHASE DETECTORS FOR SEPARATELY DETECTING THE IN-PHASE AND QUADRATURE-PHASE COMPONENTS OF SAID AMPLIFIED RESULTANT VOLTAGE WITH RESPECT TO SAID AMPLIFIED REFERENCE VOLTAGE AND FOR PRODUCING TWO UNIDIRECTIONAL CONTROL POTENTIALS RESPECTIVELY PROPORTIONAL THERETO, AND SERVO-MECHANISMS CONTROLLED BY SAID CONTROL POTENTIALS FOR MOVING SAID ANTENNA IN AZIMUTH AND IN ELEVATION IN DIRECTIONS TENDING TO REDUCE SAID POTENTIALS TO ZERO, THEREBY AUTOMATICALLY TO ORIENT SAID AXIS TOWARD SAID OBJECT.