Radar video pulse to pulse weighting apparatus

Claim 1

IN SCANNING RADAR SYSTEM COMPRISING AN ANTENNA AND RECEIVER FOR RECEIVING ECHO PULSES FROM A TARGET, MEANS FOR AUTOMATICALLY SEGREGATING EACH OF SAID RECEIVED ECHO PULSES INTO ONE OF THREE PREDETERMINED GRADES OF SIGNAL LEVELS COMPRISING: PULSE DISCRIMINATOR MEANS CONNECTEDD TO THE OUTPUT OF SAID RECEIVER, TARGET SELECTIVITY GATE MEANS TO WHICH THE OUTPUT FROM SAID PULSE DISCRIMINATOR MEANS IS APPLIED, RANGE AND AZIMUTH SIGNAL PROCESSOR MEANS ASSOCIATED WITH SAID SCANNING RADAR SYSTEM HAVING AN OUTPUT CONNECTED TO SAID TARGET SELECTIVITY GATE MEANS, SAID GATE MEANS BEING ENABLE ONLY WHEN SAID PULSE DISCRIMINATOR OUTPUT AND SAID SIGNALS PROCESSOR OUTPUT ARE SIMULTANEOUSLY ENERGIZED, FIRST, SECOND AND THIRD PULSE COUNTER MEANS TO WHICH THE OUTPUT FROM SAID GATE MEANS IS APPLIED, AZIMUTH GATE GENERATOR MEANS TO WHICH THE OUTPUT FROM SAID GATE MEANS IS APPLIED, SAID AZIMUTH GATE HAVING A WIDTH DETERMINED BY THE AZIMUTH SCAN RATE AND ANTENNA BEAMWIDTH OF SAID SCANNING RADAR SYSTEM, MEANS ELECTRICALLY INTERPOSED BETWEEN THE INPUT OF EACH OF SAID PULSE COUNTER MEANS AND THE OUTPUT OF SAID TARGET SELECTIVITY GATE MEANS TO SEPARATE EACH TARGET PULSE RETURN INTO THREE DIFFERENT AMPLITUDE LEVELS, EACH OF SAID PULSE COUNTERS COMPRISING ADJUSTABLE VOLTAGE STEP GENERATING MEANS FOR WEIGHTING EACH OF SAID TARGET ECHO PULSES ON A PULSE TO PULSE BASIS OVER THE ANTENNA BEAMWIDTH, EACH OF SAID VOLTAGE STEP GENERATING MEANS HAVING A DIFFERENT SIGNAL AMPLITUDE FROM THE OUTER, VOLTAGE SUMMING MEANS TO WHICH THE OUTPUT FROM EACH OF SAID PULSE COUNTER MEANS IS CONNECTED, AND PULSE SIGNAL CLASSIFYING MEANS CONNECTED TO THE OUTPUT OF SAID SWIMMING MEANS COMPRISING FIRST AND SECOND THERSHOLD MEANS CONNECTED IN PARALLEL TO SEGREGATE SAID SUMMING MEANS OUTPUT INTO ONE OF THREE PREDETERMINED OUTPUT LEVELS.