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Moving target vibration estimation in SAR using chirp modulation and autofocus

  • Beihang University
  • Nanyang Technological University

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

Abstract

This paper proposes a novel method on moving target vibration estimation in high resolution synthetic aperture radar (SAR). Analogous with stochastic resonance technique, chirp modulation is first artificially applied to the focused moving target signals containing paired echoes along the azimuth direction. Then the target is processed with autofocus, and phase error caused by vibration is estimated, and consequently the vibration parameters are calculated based on the phase error. Simulation and experiment results with real airborne SAR data validate the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2014 International Radar Conference, Radar 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479941957
DOIs
StatePublished - 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

  • chirp modulation
  • SAR
  • vibration

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