Lockheed Electronics Co., Inc.

Charles L Opitz

Leo Slobodin

Paul E Chase

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-categorize the target.

Radar apparatus for detecting an agitated reflective target

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.

Radar apparatus for determining range to an agitated reflective target

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.

Radar apparatus for detecting and/or classifying an agitated reflective

A radar object locator having a transmitter radiating carrier energy in at least one band of frequencies and a receiver tuned to a frequency different from that radiated by the transmitter whereby only a frequency band of carrier energy produced by the electrical non-linearity characteristics of particular objects is detected by the receiver.

Growing community of inventors

Lancaster, PA, United States of America

Charles L Opitz