Doppler Centroid Estimation for Space-Surface BiSAR
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概要
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Phase synchronization is a crucial problem in Bistatic Synthetic Aperture Radar (BiSAR). As phase synchronization error and Doppler phase have nearly the same form, Doppler Centroid (DC) cannot be estimated with traditional method in BiSAR. A DC estimation method is proposed through phase-interferometry of Dual-channel direct signal. Through phase interferometry, phase synchronization error can be counteracted while Doppler phase is reserved and DC can be estimated from the reserved phase.
著者
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Yang Jian
Tsinghua Univ. Beijing Chn
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Tian Weiming
Tsinghua University
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Yang Xiaopeng
Beijing Institute Of Technology
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