Vessel velocity estimation using TanDEM-X pursuit like mode polarimetric SAR data

Konferenz: EUSAR 2018 - 12th European Conference on Synthetic Aperture Radar
04.06.2018 - 07.06.2018 in Aachen, Germany

Tagungsband: EUSAR 2018

Seiten: 3Sprache: EnglischTyp: PDF

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Wang, Changcheng; Shen, Peng; Cai, Jiehua; Gao, Han; Zhu, Jianjun (School of Geosciences and Info-Physics, Central South University, China)

The spaceborne dual-platform of the TanDEM-X in pursuit monostatic mode provides a potential for traffic monitoring. The accuracy of traditional target velocity estimation methods is mainly determined by 2-D crosscorrelation of SAR data. For single-polarization SAR images, the traditional cross-correlation method is mainly based on SAR intensity information, which is easily affected by speckle noise. In this paper, we propose a vessel velocity estimation method with fully polarimetric SAR data of dual-platform TanDEM-X in pursuit monostatic mode. The proposed method is based on the likelihood-ratio wishart statistics with PolSAR images data to get the more accurate moving parameter. The proposed method is verified using experimental data acquired by TSX/TDX in pursuit monostatic mode. Compared with dual-platform GMTI with single-polarization SAR data, the proposed method can get higher accuracy of vessel velocity