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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