Co-notch and independent windowing to mitigate interference in SAR-based imagery

Musgrove, Cameron; Riley, Robert E.; West, James C.

Title: Co-notch and independent windowing to mitigate interference in SAR-based imagery

Patent · Tue Mar 17 00:00:00 EDT 2020

OSTI ID:1637834

Musgrove, Cameron; Riley, Robert E.; West, James C.

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.

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Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM); West, James C., Stillwater, OK (United States)

Patent Number(s):: 10,591,582

Application Number:: 15/354,033

OSTI ID:: 1637834

Resource Relation:: Patent File Date: 11/17/2016

Country of Publication:: United States

Language:: English

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