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Method of moving target detection based on sub-image cancell-ation for single-antenna airborne synthetic aperture radar

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4 Author(s)
Shujun, Liu ; Dept. of Electronic and Information Engineering, Beihang Univ., Beijing 100083, P. R. China ; Yunneng, Yuan ; Fei, Gao ; Shiyi, Mao

The method of moving target detection based on subimage cancellation for single-antenna airborne SAR is presented. First the subimage is obtained through frequency processing is pointed out. The imaging difference of a stationary objects and moving object in the subimage based on the frequency division is analyzed from the fundamental principle. Then the developed method combines the shear averaging algorithm to focus on the moving target in the subimage, after the clutter suppression and the focusing position in each subimage is obtained. Next the observation model and the relative movement of the moving targets between the subimages estimate the moving targets. The theoretical analysis and simulation results demonstrate that the method is effective and can not only detect the moving targets, but also estimate their motion parameters precisely.

Published in:

Systems Engineering and Electronics, Journal of  (Volume:18 ,  Issue: 3 )