Small target doppler detection system

Details Small target doppler detection system Small target doppler detection system

1992-04-30

1993-11-16

Tubbesing, T. H.

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

Clutter elimination

Mti

342 90, 342192, G01S 1352

Patent

active

052627853

ABSTRACT:
A small target phased array Doppler detection system receives signals from remote moving targets and determines Doppler frequency shift and the respective powers of coherent electromagnetic signals for the purpose of detection and identification of relatively small, slow moving targets in the presence of scattering echoes due to clutter. The system employs covariance analysis of the received signals followed by eigenanalysis to produce eigenvectors and eigenvalues. A superresolution algorithm creates dwell manifold vectors which indicate velocities of targets from the eigenvectors. The relative power of radar echoes contribute information relevant to the identification of real moving targets as opposed to false alarms.

REFERENCES:
patent: 4630051 (1986-12-01), Adams et al.
patent: 5068597 (1991-11-01), Silverstein et al.
patent: 5121125 (1992-06-01), Guerci et al.
patent: 5202691 (1993-04-01), Hicks
U.S. Patent Application, "Source Identification System for Closely Separated Spatial Sources", Seth David Silverstein, Ser. No. 07/876,957 filed Apr. 30, 1992.
"MTI and Pulse Doppler Radar", Introduction to Radar Systems, 2nd Edition, by M. I. Skolnik, pp. 101-106 (1980).

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