The results show that the method can reduce the positioning error and obtain a higher location accuracy to meet the needs of target location on sea or load.

分析结果表明，该方法可以减小定位误差，获得较高的定位精度，满足对海上或陆上目标定位的需求。

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Linear phase error leads to that the estimated target location offsets from its original location in airborne SAR imaging, and the Doppler centroid frequency will be changed.

线性相位误差导致机载SAR成像后目标的位置发生偏离，从而改变多普勒中心频率。研究线性相位误差的特点，提出一种改进的杂波锁定估计方法。

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A channel error calibration algorithm based on sub-patch SAR image is proposed, and the spatial adaptive processing is used for the moving target detection and location.

本文提出了一种分块SAR图像通道误差校正算法，进而采用空域自适应处理对慢动目标进行检测及定位。

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