Apparatus and method for classifying moving targets

Details Apparatus and method for classifying moving targets Apparatus and method for classifying moving targets

1980-07-02

1982-09-07

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

G01S 1358

Patent

active

043486746

ABSTRACT:
Method and apparatus for passive classification of moving targets which uses pulse Doppler radar wherein in addition to the primary Doppler echo the radar echo signals of the moving targets also contain periodically repeating Dopplers side line frequencies which can be utilized for classification of the targets. These Doppler side lines occur because of the periodic change of reflectivity of the target as, for example, due to rotating parts on the target and in the invention are investigated by means of spectral analysis for identification of the target. For example, land vehicles, wheeled and track vehicles can be easily distinguished with the invention and a first rough evaluation and in a fine detail evaluation, can be classified for every target type.

REFERENCES:
patent: 1981884 (1934-11-01), Taylor et al.
patent: 3733603 (1973-05-01), Johnston
patent: 3882495 (1975-05-01), Bolger
patent: 3896434 (1975-07-01), Sirven
patent: 3983558 (1976-09-01), Rittenbach
patent: 4001820 (1977-01-01), Rosenbaum et al.
patent: 4053891 (1977-10-01), Opitz
patent: 4101890 (1978-07-01), Goyard
patent: 4275396 (1981-06-01), Jacomini

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