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Title: Small mover target detection in synthetic aperture radar imagery

Abstract

The various technologies presented herein relate to detecting small moving entities or targets in radar imagery. Two SAR images can be captured for a common scene, wherein the scene is imaged twice from the same flight path. The first image is captured at a first instance and the second image is captured at a second instance, and differences between the two images are determined using a complex SAR change measure, excess coherency factor or DeltaC, based in part upon quantification of incoherent (or magnitude) change between the two images. A plurality of operations are performed to enable extraction of coherent change measures relating to the small moving entities from measures relating to large objects, stationary reflective structures, radar focusing artifacts, etc.

Inventors:
; ; ; ; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568177
Patent Number(s):
10254399
Application Number:
14/957,394
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/02/2015
Country of Publication:
United States
Language:
English

Citation Formats

Simonson, Katherine M., Perkins, David Nikolaus, Brooks, Jeffrey A., West, Roger Derek, Lizarraga, Ivan, Strosnick, Matthew, and Torgesen, David A. Small mover target detection in synthetic aperture radar imagery. United States: N. p., 2019. Web.
Simonson, Katherine M., Perkins, David Nikolaus, Brooks, Jeffrey A., West, Roger Derek, Lizarraga, Ivan, Strosnick, Matthew, & Torgesen, David A. Small mover target detection in synthetic aperture radar imagery. United States.
Simonson, Katherine M., Perkins, David Nikolaus, Brooks, Jeffrey A., West, Roger Derek, Lizarraga, Ivan, Strosnick, Matthew, and Torgesen, David A. Tue . "Small mover target detection in synthetic aperture radar imagery". United States. https://www.osti.gov/servlets/purl/1568177.
@article{osti_1568177,
title = {Small mover target detection in synthetic aperture radar imagery},
author = {Simonson, Katherine M. and Perkins, David Nikolaus and Brooks, Jeffrey A. and West, Roger Derek and Lizarraga, Ivan and Strosnick, Matthew and Torgesen, David A.},
abstractNote = {The various technologies presented herein relate to detecting small moving entities or targets in radar imagery. Two SAR images can be captured for a common scene, wherein the scene is imaged twice from the same flight path. The first image is captured at a first instance and the second image is captured at a second instance, and differences between the two images are determined using a complex SAR change measure, excess coherency factor or DeltaC, based in part upon quantification of incoherent (or magnitude) change between the two images. A plurality of operations are performed to enable extraction of coherent change measures relating to the small moving entities from measures relating to large objects, stationary reflective structures, radar focusing artifacts, etc.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

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Works referenced in this record:

Mobile coherent change detection ground penetrating radar
patent, July 2014


High-definition imaging apparatus and method
patent, August 2003


Agile beam pulse to pulse interleaved radar modes
patent, June 2011