Coherent Change Detection Using Passive GNSS-Based BSAR: Experimental Proof of Concept

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Colleges, School and Institutes

External organisations

  • Beijing Institute of Electronic Technology
  • School of Electronic, Electrical and Computer Engineering


This paper presents proof-of-concept methods and results on a passive synthetic aperture radar for surface change monitoring. The bistatic topology comprises navigation satellites (such as Global Positioning System, GLObal Navigation Satellite System (GLONASS), Galileo, or Beidou) as transmitters of opportunity and a fixed receiver on the ground. Surface monitoring is to be provided through coherent change detection. An experimental test bed built to confirm the concept of the system is described, and the appropriate experimental program is presented. Preliminary signal processing algorithms for change detection are derived. Experimentally measured changes are compared to the theoretical predictions, and the obtained results are discussed.

Bibliographic note

Copyright 2013 Elsevier B.V., All rights reserved.


Original languageEnglish
Article number6410412
Pages (from-to)4544-4555
Number of pages12
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number8
Publication statusPublished - 14 Jan 2013


  • Bistatic synthetic aperture radar (SAR), Coherent change detection (CCD), Passive radar