On the spatial-temporal resolution of synthetic aperture radar: Uncertainty principle?

Tao Zeng, Xinliang Chen, Jingyang Wang, Kai Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Synthetic aperture radar (SAR) systems have been successful in applications of monitoring stationary terrain as well as detecting long-term changes. Recently, new technologies in SAR such as GEO SAR, Circular SAR and SS-BiSAR allow observing an area continuously and provide potential to detect sudden changes. The generalized ambiguity function is extended to analyze the spatial-temporal resolution for change detection. The lower bound of temporal resolution is derived and utilized to establish an uncertainty principle analogous to the uncertainty principle in signal analysis. The influence of the type and extent of changes in two typical cases is studied. The results show that the product of spatial and temporal resolution is bounded no matter how the synthetic aperture time is configured. The theoretic results are verified by simulation.

Original languageEnglish
Title of host publication2014 International Radar Conference, Radar 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479941957
DOIs
Publication statusPublished - 12 Mar 2014
Event2014 International Radar Conference, Radar 2014 - Lille, France
Duration: 13 Oct 201417 Oct 2014

Publication series

Name2014 International Radar Conference, Radar 2014

Conference

Conference2014 International Radar Conference, Radar 2014
Country/TerritoryFrance
CityLille
Period13/10/1417/10/14

Keywords

  • Circular SAR
  • GEO SAR
  • Synthetic Aperture Radar
  • change detection
  • lower bound
  • spatial-temporal resolution
  • uncertainty principle
  • uncertainty product

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