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Doppler ambiguity resolving for SAR moving targets via linear migration correction

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5 Author(s)
Xia, B. ; Dept. of Electron. Eng., Tsinghua Univ., Beijing, China ; Xu, J. ; Peng, Y.-N. ; Xia, X.-G.
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After range cell migration correction in the range-Doppler domain, it is found that the two-dimensional envelope of a synthetic aperture radar (SAR) moving target exhibits a skew with the slope proportional to its Doppler ambiguity integer. Therefore, a novel approach is proposed for Doppler ambiguity resolving of SAR moving targets based on linear residual migration correction. The results of both Monte-Carlo trials and real data are provided to demonstrate the effectiveness of the proposed method.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 7 )