Method for the attenuation of the clutter coming from the reflec

Details Method for the attenuation of the clutter coming from the reflec Method for the attenuation of the clutter coming from the reflec

1998-11-09

2000-05-09

Gregory, Benarr E.

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

Clutter elimination

342175, 342195, 342378, 342379, 342381, 342384, G01S 1300, G01S 316, H01Q 324

Patent

active

060610166

ABSTRACT:
The disclosed method uses the ancillary antennas of a radar, and consists in determining the positions of the phase centers of these ancillary antennas, compensating for the difference in optical path between the reflection lobe of the processed channel and that of the ancillary channel, and generating a synthetic channel by an SLO type processing in performing a coherent subtraction between the processed channel and the ancillary channels used, on the desensitized zone of the doppler distance/frequency ambiguous domain of each of the processed channels.

REFERENCES:
patent: 4688187 (1987-08-01), McWhirter
patent: 5163176 (1992-11-01), Flumerfelt et al.
patent: 5506586 (1996-04-01), Bull
patent: 5635939 (1997-06-01), Chekroun
Kiyonobu Abe, et al., "Radar Sidelobe Canceller Characteristics in High Power Interference", IEICE Transactions on Communications, vol. E78-B, No. 11, Nov. 1, 1995, pp. 1507-1512.
Stanley M. Yuen, "Algorithmic, Architectural, and Beam Pattern Issues of Sidelobe Cancellation", IEEE Transactions on Aerospace and Electronic Systems, vol. 25, No. 4, Jul. 1989, pp. 459-471.
"Antenna Sidelobe Requirements for the Medium PRF Mode of an Airborne Radar"; by Guy V. Morris; "Microwave Journal", Sep. 1989.

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