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3732566 CONTINUOUS WAVE RANGING RADAR  
A continuous wave ranging radar system in which a transmitted constant amplitude continuous wave is combined with the reflected wave from an object to produce a waveform having a beat frequency...
3657738 RADAR SYSTEMS  
A radar system referred to as a noise radar system operating in a continuous or quasi-continuous mode, which transmits a noise signal toward a target. The receiver signal from the target is summed...
3652161 METHOD AND ARRANGEMENT FOR MEASURING DISTANCES OPTICALLY WITH HIGH PRECISION  
Apparatus and method for measuring distance in which a coarse measurement of the distance is made by detecting the time of travel of a pulse and a precise measurement is made by using a measuring...
3614226 PHASE-LOCKED PULSED DISTANCE-MEASURING EQUIPMENT UTILIZING A COARSE SCALE AND FINE SCALE MEASUREMENT  
An electromagnetic distance-measuring device wherein the time of transit of signals to and from a target is measured to determine a coarse scale distance to the target. An additional fine scale...
3603990 SPECTRUM ANALYSIS RADAR SYSTEM  
A radar system and method in which the returned target signal is added to a reference signal derived from the original transmitted signal. The power spectrum of the sum signal is modulated. The...
3577143 EXTENDED RANGE SPECTRUM ANALYSIS RADAR  
A radar system in which the return signal is added to a reference signal derived from the original transmitted signal. The power spectrum of the sum signal is modulated. The modulation frequency...
3576565 ARRANGEMENT FOR MEASURING SHORT DISTANCES  
A carrier signal is applied to the primary of a transformer whose secondary s center tapped. One end of the secondary winding is connected to an antenna establishing an electric or magnetic field....
3538506 SUPER-REGENERATIVE OSCILLATOR TARGET DETECTION SYSTEM  
3501763 METHOD OF MEASURING THE SPACING OF TWO MOVING VEHICLES AND A DEVICE FOR THE PERFORMANCE THEREOF,AND THEIR APPLICATION TO THE EVALUATION OF THE TRAFFIC DENSITY OF VEHICLES  
3368218 Range measuring phase interferometer radar system  
3284800 Continuous wave radar system  
3271765 Data compression processing system  
3088111 Object detecting system  
3081455 Continuous wave moving target information radar system  
3063047 Firing point locator system  
2923002 Attitude indicator  
2911641 Electronic direction sensitive doppler device  
2807017 Radio computer system