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| A NEW METHOD TO ESTIMATE DOPPLER CENTROID FOR SPACEBORNE SAR-AMPLITUDE CORRELATION METHOD |
| Liu Guoqin; Huang Shunji |
| University of Electronic Science & Technology of China, Chengdu 619054 |
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Abstract The linear relationship between Doppler centroid and range walki, in spaceborne SAR data is analysed,and a new method to estimate Doppler centroir is proposed, which is called amplitude correlation method. Compared with Li s(1985) clutterlock method that is widely used now, the new method has much less compv tation burden and is able to give higher estimation accuracy for a quasi-homogeneous or a non-homogeneous scene. This is clearly verified by the experimental results of estimating Doppler centroid for S...
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Received: 18 January 1993
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1994, Vol. 16 
