Co-notch and independent windowing to mitigate interference in SAR-based imagery
Abstract
Various technologies for mitigating distortion in coherent image products generated from SAR data are described herein. Synthetic aperture radar (SAR) datasets generated based upon SAR returns from first and second passes of a SAR platform over a scene are received. The SAR datasets can be co-notched at matching sample indices to improve coherence of SAR images generated from the datasets. Windowed SAR data is generated by applying independent windows to subsets of each of the datasets to reduce sidelobe levels of their image impulse responses. Coherent image products are generated based upon the windowed SAR data, wherein an image quality of the coherent image products is improved as compared to coherent image products generated based upon the SAR datasets.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1637834
- Patent Number(s):
- 10591582
- Application Number:
- 15/354,033
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); West, James C., Stillwater, OK (United States)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 11/17/2016
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Musgrove, Cameron, Riley, Robert E., and West, James C. Co-notch and independent windowing to mitigate interference in SAR-based imagery. United States: N. p., 2020.
Web.
Musgrove, Cameron, Riley, Robert E., & West, James C. Co-notch and independent windowing to mitigate interference in SAR-based imagery. United States.
Musgrove, Cameron, Riley, Robert E., and West, James C. Tue .
"Co-notch and independent windowing to mitigate interference in SAR-based imagery". United States. https://www.osti.gov/servlets/purl/1637834.
@article{osti_1637834,
title = {Co-notch and independent windowing to mitigate interference in SAR-based imagery},
author = {Musgrove, Cameron and Riley, Robert E. and West, James C.},
abstractNote = {Various technologies for mitigating distortion in coherent image products generated from SAR data are described herein. Synthetic aperture radar (SAR) datasets generated based upon SAR returns from first and second passes of a SAR platform over a scene are received. The SAR datasets can be co-notched at matching sample indices to improve coherence of SAR images generated from the datasets. Windowed SAR data is generated by applying independent windows to subsets of each of the datasets to reduce sidelobe levels of their image impulse responses. Coherent image products are generated based upon the windowed SAR data, wherein an image quality of the coherent image products is improved as compared to coherent image products generated based upon the SAR datasets.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {3}
}
Works referenced in this record:
Fourier-transform-based adaptive radio interference mitigation
patent, December 2000
- Jao, Jen King
- US Patent Document 6,166,678
Method and System for Processing Received Data
patent-application, June 2013
- McCorkle, John W.
- US Patent Application 13/708832; 20130151201
Combined Intensity and Coherent Change Detection in Images
patent-application, March 2017
- Cha, Miriam; Phillips, Rhonda D.; Wolfe, Patrick J.
- US Patent Application 15/187035; 20170061217
Phase correction system for automatic focusing of synthetic aperture radar
patent, May 1990
- Eichel, Paul H.; Ghiglia, Dennis C.; Jakowatz, Jr., Charles V.
- US Patent Document 4,924,229
Synthetic aperture radar simulation
patent, October 1997
- Pritt, Mark D.
- US Patent Document 5,680,138
Method and system for recovery of missing spectral information in wideband signal
patent, September 2014
- Nguyen, Lam Huy; Do, Thong
- US Patent Document 8,824,544
Method and apparatus for performing local to global multiframe alignment to construct mosaic images
patent, June 2000
- Hsu, Stephen Charles; Kumar, Rakesh; Sawhney, Harpreet Singh
- US Patent Document 6,078,701
Phase difference auto focusing for synthetic aperture radar imaging
patent, March 1991
- Niho, Yoji G.
- US Patent Document 4,999,635
Reconstruction of Coherent Pairs of Synthetic Aperture Radar Data Acquired in Interrupted Mode
journal, April 2015
- Pinheiro, Muriel; Rodriguez-Cassola, Marc; Prats-Iraola, Pau
- IEEE Transactions on Geoscience and Remote Sensing, Vol. 53, Issue 4
Method of Difference Sensing through Optical Coherent Change Detection
patent-application, February 2008
- Plant, James R.
- US Patent Application 11/843746; 20080050021
Detection and Mitigation Radio Frequency Memory (DRFM)-Based Interference in Synthetic Aperture Radar (SAR) Images
patent-application, April 2009
- Sanyal, Probal Kumar; Perry, Richard Prather; Zasada, David Matthew
- US Patent Application 11/907096; 20090091492
Radar echo processing with partitioned de-ramp
patent, March 2013
- Dubbert, Dale F.; Tise, Bertice L.
- US Patent Document 8,400,349
Registering coherent change detection products associated with large image sets and long capture intervals
patent, April 2014
- Perkins, David Nikolaus; Gonzales, Antonio
- US Patent Document 8,692,704
Process for the detection and suppression of interfering signals in S.A.R. data and device for performing this process
patent, February 2000
- Buckreuss, Stefan; Sutor, Thomas
- US Patent Document 6,028,549
Windowing functions for SAR data with spectral gaps
conference, September 2003
- Doerry, Armin W.; Dickey, Fred M.; Romero, Louis A.
- SPIE Proceedings
Method and System for Estimation and Extraction of Interference Noise from Signals
patent-application, November 2014
- Nguyen, Lam H.; Tran, Trac D.
- US Patent Application 14/452902; 20140347213
High duty cycle radar with near/far pulse compression interference mitigation
patent, September 2012
- Song, William S.
- US Patent Document 8,259,003
Synthetic aperture radar (SAR) imaging system
patent, October 2010
- Morris, James R.
- US Patent Document 7,812,758
Correction of spatially variant phase error for synthetic aperture radar
patent, August 2015
- Cho, Kwang Myung; Cheung, Antonia T.
- US Patent Document 9,110,167
Flight path-driven mitigation of wavefront curvature effects in SAR images
patent, June 2009
- Doerry, Armin W.
- US Patent Document 7,551,119