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}
}