RFI suppression in SAR

Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C342S192000, C342S194000, C342S196000

Reexamination Certificate

active

07932852

ABSTRACT:
A filter scheme for broadcast interference cancellation that is computationally efficient and numerically robust Airborne Low Frequency Synthetic Aperture Radar (SAR) operating in the VHF and UHF bands has been shown. At least interference Doppler filtering or interference cancellation is utilized. The interference cancellation involves prediction of the interference for each particular reception interval of mixed interference and radar ground response. This prediction is then coherently subtracted from the incoming signal.

REFERENCES:
patent: 5461426 (1995-10-01), Limberg et al.
patent: 5546085 (1996-08-01), Garnaat et al.
patent: 5657244 (1997-08-01), Seitz
patent: 6028549 (2000-02-01), Buckreuss et al.
patent: 6166678 (2000-12-01), Jao
patent: 6760487 (2004-07-01), Linares
patent: 6867727 (2005-03-01), Mitra
patent: 7006553 (2006-02-01), McCorkle
patent: 7551118 (2009-06-01), Hellsten
patent: 2002/0144619 (2002-10-01), Rawcliffe et al.
“U.S. Appl. No. 10/551,088, Non-Final Office Action mailed Jun. 25, 2008”, OARN, 18 pgs.
“U.S. Appl. No. 10/551,088 Response filed Dec. 23, 2008 to Non-final Office Action mailed Jun. 25, 2008”, 10 pgs.
“U.S. Appl. No. 10/551,088, Notice of Allowance mailed Feb. 24, 2009”, 7 pgs.
“Swedish Patent Office, International Search Report for PCT/SE2004/000654, dated Jul. 27, 2004”.
Lord, R., et al., “Approaches to RF interference suppression for VHF/UHF synthetic aperture radar”, Proceedings of the 1998 South African Symposium on Communications and Signal Processing, 1998. COMSIG '98., Sep. 7-8, 1988, Chapter I, II and IIIA, (1998), 95-100.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

RFI suppression in SAR does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with RFI suppression in SAR, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RFI suppression in SAR will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2629695

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.