Radar apparatus for determining range to an agitated reflective

Details Radar apparatus for determining range to an agitated reflective Radar apparatus for determining range to an agitated reflective

1975-11-06

1987-02-03

Buczinski, S. C.

Communications: directive radio wave systems and devices (e.g.,

Combined with diverse type radiant energy system

342 5, 342104, 342 73, 342 61, G01S 1300, G01S 1352

Patent

active

046411372

ABSTRACT:
Improved non-cooperative radar apparatus locates and type-classifies an agitated, vibrating reflective target (e.g., a vehicle with its engine running) - whether the target is moving or stationary.
A homodyne-type receiver with a cooperating band pass filter extracts a reflected, frequency-shifted energy pattern which identifies the incidence of the agitated target. In accordance with further aspects of the instant invention, the particular energy distribution for the returned, reflected wave is then compared with a stored ensemble of such distributions, or target "signatures", to type-catagorize the target.

REFERENCES:
patent: 684706 (1901-10-01), Mundy
patent: 2910665 (1959-10-01), Hawkins
patent: 3512155 (1970-05-01), Bloice
patent: 3713149 (1973-01-01), Bruner et al.
patent: 3733603 (1973-05-01), Johnston
patent: 3882495 (1975-05-01), Bolger

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