Estimating Along-Track Speed of A Ground Moving Target in the Presence Of Acceleration

Konferenz: EUSAR 2010 - 8th European Conference on Synthetic Aperture Radar
07.06.2010 - 10.06.2010 in Aachen, Germany

Tagungsband: EUSAR 2010

Seiten: 4Sprache: EnglischTyp: PDF

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Chiu, Shen (Defence R&D Canada, Ottawa, Canada)
Marina Dragoševi? (TerraBytes Consulting, Canada)

A method to estimate the along-track speed of an accelerating moving target based on estimating the slope of along-track interferometric (ATI) phase and the Doppler rate of the target phase history is proposed. ATI phase noise appears to be the major stumbling block when estimating a very small ATI phase slope change that corresponds to a target’s along-track speed. Because of this problem, the feasibility of the technique cannot be demonstrated using RADARSAT-2 MODEX data. On the other hand, the estimation of the target’s Doppler rate can be noticeably improved with the proposed use of the target’s ambiguity.