Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1982-03-01
1985-06-18
Tubbesing, T. H.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343 5FT, 343 5DP, 343 171R, G01S 1352, G01S 728
Patent
active
045243581
ABSTRACT:
In a pulse radar apparatus target returns are detected, sampled, digitized per range quant and frequency analyzed. The apparatus includes a cell classification unit (5) for deriving from the spectrum of the target returns a cell classification signal, whose logical values indicate whether the target returns within a radar cell are classified to be from a moving target or from a fixed target. In a microprocessor (15) the cells, which cluster, while a signal represenmtative of the target covered by the collectively cover one single target, are combined to form a cluster is determined. In the microprocessor (15) a cluster classification signal is derived, whose logical values indicate whether the target returns within the cluster are classified to be from a moving target or from a fixed target. The signal representative of the target covered by the cluster is read out if it is derived from target returns classified to be from moving targets.
REFERENCES:
patent: 3680096 (1972-07-01), Bosc
patent: 4104631 (1978-08-01), Weigle et al.
patent: 4106019 (1978-08-01), Alexander et al.
patent: 4225864 (1980-09-01), Lillington
J. D. Grimm et al., "Radar Signal Processing Technology", May 1978, pp. 1-11, IEEE Electro/78 Conf. Record, 28/2, presented at Electro/78 Boston (USA).
C. E. Muehe et al., "The Parallel Microprogrammed Processor", Oct. 25-28, 1977, pp. 97-100, Radar, London, England.
C. E. Muehe, "Moving Target Detector, An Improved Signal Processor", Jun. 14-17, 1976, pp. 14-1-14-10, Conference: AGARD Conference Proceedings.
Bergman Jan
Hol Willem A.
Van Genderen Pieter
Barron Jr. Gilberto
Hollandse Signaalapparaten B.V.
Kraus Robert J.
Tubbesing T. H.
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