Communications: directive radio wave systems and devices (e.g. – Return signal controls radar system – Receiver
Patent
1992-12-16
1994-05-10
Hellner, Mark
Communications: directive radio wave systems and devices (e.g.,
Return signal controls radar system
Receiver
342160, G01S 1350
Patent
active
053111885
ABSTRACT:
A radar apparatus provided with transmitter means (1), rotating antenna means (2) and receiver means (3) for the transmission per burst and the processing in a video processor of radar echo signals. The video processor includes moving target detection unit (4) provided with a doppler filter bank, for instance an FFT processor, and slow moving target detection unit (6), provided with coherent clutter maps, one map for each radar transmitter frequency used. The coherent clutter maps are also used for reducing the clutter strength of radar echo signals which are applied to the moving target detection unit (4), by subtracting the coherent clutter strengths stored in the clutter maps from the radar echo signals.
REFERENCES:
patent: 4217583 (1980-08-01), Hiller et al.
patent: 4222050 (1980-09-01), Kiuchi et al.
patent: 5049889 (1991-09-01), Hol et al.
patent: 5070335 (1991-12-01), Lewis et al.
Proceedings of the International Conference Radar-82, Oct. 18-20, 1982, J. S. Bird, pp. 491-495, "Ground Clutter Suppression Using a Coherent Clutter Map."
Meijer Wietze J. H.
Nooy Petrus N. C.
Hellner Mark
Hollandse Signaalapparaten B.V.
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