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Title: 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

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}
}

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Works referenced in this record:

SAR radar system
patent, October 1999


Radar echo processing with partitioned de-ramp
patent, March 2013


Phase correction system for automatic focusing of synthetic aperture radar
patent, May 1990


Synthetic aperture radar simulation
patent, October 1997


Method and apparatus for performing local to global multiframe alignment to construct mosaic images
patent, June 2000


Synthetic aperture radar (SAR) imaging system
patent, October 2010


RFI suppression in SAR
patent, June 2009


Correction of spatially variant phase error for synthetic aperture radar
patent, August 2015