Clutter rejection in a passive radar receiver of OFDM signals

Details Clutter rejection in a passive radar receiver of OFDM signals Clutter rejection in a passive radar receiver of OFDM signals

2005-08-02

2005-08-02

Gregory, Bernarr E. (Department: 3662)

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

Clutter elimination

C342S089000, C342S160000, C342S162000, C342S175000, C342S192000, C342S195000, C342S196000

Reexamination Certificate

active

06924763

ABSTRACT:
The invention concerns a passive radar receiver for a received orthogonal frequency division multiplex-type signal consisting of symbol frames each emitted on coded orthogonal carriers. After formatting the received signals into digital symbols (S1S1), a filtering circuit (2) eliminates by subtraction or using a covariance matrix, in the symbol signal at least unwanted signals with null Doppler effect so as to apply a filtered signal (X′) including essentially signals backscattered by mobile targets to a Doppler-distance correlator (4).

REFERENCES:
patent: 3831174 (1974-08-01), King et al.
patent: 3972041 (1976-07-01), Howard
patent: 3987442 (1976-10-01), McLeod, Jr.
patent: 4137533 (1979-01-01), Briechle et al.
patent: 4617568 (1986-10-01), Mutoh
patent: 4618864 (1986-10-01), Martin et al.
patent: 5973642 (1999-10-01), Sollenberger et al.
patent: 6400306 (2002-06-01), Nohara et al.
patent: 0 681 190 (1995-11-01), None
patent: 2 776 438 (1999-09-01), None

Affiliated with

Also associated with

Rating

Clutter rejection in a passive radar receiver of OFDM signals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clutter rejection in a passive radar receiver of OFDM signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clutter rejection in a passive radar receiver of OFDM signals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3447173