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Partial Aperture Effect-Free Doppler Centroid Estimation Method for Airborne Side-looking SAR Based on Range-Doppler Domain Contrast Minimization

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4 Author(s)
Mingcheng Yu ; Dept. of Electron. Eng., Tsinghua Univ., Beijing ; Jia Xu ; Yingning Peng ; Xiutan Wang

Based on the statistical property of the range migration (RM) in the synthetic aperture radar (SAR) range compressed range-Doppler (RD) domain, a Doppler centroid estimation method for SAR is proposed. The method can mitigate the partial aperture effect (PAE) which seriously degrades the estimation accuracy of the traditional Doppler estimators for high contrast scenes. Experimental results with real data of airborne high resolution SAR support the application of the proposed method to practical SAR processing.

Published in:

2006 8th international Conference on Signal Processing  (Volume:4 )

Date of Conference:

16-20 Nov. 2006