MTI Radar comprising a processor selectively operable as a Weibu

Details MTI Radar comprising a processor selectively operable as a Weibu MTI Radar comprising a processor selectively operable as a Weibu

1980-03-11

1982-03-02

Hubler, Malcolm F.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 77, G01S 1352

Patent

active

043181015

ABSTRACT:
In an MTI radar receiver, a clutter suppressor (46, 47, 48) is switched (72), under the control of a discriminating device (71) responsive either to the shape parameter .eta. of the Weibull distribution or an average level of a clutter suppressed signal, to be selectively operable as a Weibull and a Rayleigh clutter suppressor for best possible LOG/CFAR processing with simple cell averaging circuitry. The suppressor may comprise a first processor (61) combined with an .eta. parameter calculator (48) for converting the Weibull clutter to the Rayleigh clutter, a second processor (89) for timing, and a simple suppressor (62) for the Rayleigh clutter. (FIG. 6).

REFERENCES:
"Constant False Alarm Rate Processing in Search Radars" by V. Greger Hansen, reported at International Conference on Radars-Present and Future, Oct. 23-25, 1973, pp. 1-8.
"Method of CFAR Processing Radar Clutter Following Weibull Distribution by Conversion into Rayleigh Distribution" by Sekine et al, Papers for the Reports of General Meeting for 1979 IEEE Communication Engineers of Japan, Fascicle 6, Published 3/5/79, Available only in Japanese, the identification given is a translation.
"Suppression of Weibull-Distributed Clutters Using a Cell-Averaging by LOG/CFAR Receiver" by Sekine, et al, IEEE Transactions on Aerospace and Electronic Systems, vol. AES-14, No. 5, 9/78, pp. 823-826.
"False Alarm Regulation in Log-Normal and Weibull Clutter" by G. B. Goldstein, IEEE Transactions on Aerospace and Electronic Systems, vol. AES-9, No. 1, Jan. 1973.
"Radar Detection in Weibull Clutter" by D. C. Schleher, IEEE Transactions on Aerospace and Electronic Systems, vol. AES-12, No. 6, Nov. 1976.

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