Research/Patents/US 4697186
US 4697186

VELOCITY DISCRIMINATION RADAR

Assignee

Filed

Apr 30, 1975

Granted

Sep 29, 1987

Location

CORONADO CA US

Abstract

A radar method and apparatus which utilizes a first frequency signal modued by a first modulating signal and a second frequency signal modulated by a second modulating signal, the first and second frequencies being different and the first and second modulating waveforms having different periods of repetition. The radar receiver separates the return radar signal into the component due to the first frequency signal and the component due to the second frequency signal. Both components are then heterodyned with their respective frequency signals. Each modulating waveform is subjected to a plurality of delays and each component is subsequently correlated with each of its respective delayed modulating waveforms. A target is recognized when the correlated first frequency component exceeds a predetermined threshold and simultaneously the correlated second frequency component exceeds a predetermined threshold.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 12, 1982

Rescinded

Feb 18, 1986

Duration

3 years, 11 months

Inventor

  • 1ROBERT G. ROCK

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records