Doppler beam sharpening (DBS) technique can provide reference for the location of the moving target detected to attack more accurately and effectively.
多普勒波束锐化成像技术(DBS)能为检测出的动目标定位提供参考，从而有效地实现精确打击。
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The realization of location using the difference of doppler frequency is discussed, the formula for the location error is derived and its simplification form with data simulation is presented.
After comparison of several location methods of remote sensing image, Range-Doppler (R-D) theory is proved to have advantages as the footstone of pixel location model of SAR image.