理论分析表明：近场三维距离偏移算法与后向投影算法相比，能在较大程度上减少运算量。
Theoretical analysis shows that near field 3-d range migration imaging technique can reduce computational complexity in much degree by contrast with back propagation algorithm.
这一方法不仅能够算出所用插值算法的实际径向偏移距离，还能比较不同算法关于径向精度的建模质量。
This method can not only describe deviation of features after modeling but also compare the modeling quality of different modeling methods according to radial accuracy.
这一方法不仅能够算出所用插值算法的实际径向偏移距离，还能比较不同算法关于径向精度的建模质量。
This method can not only describe deviation of features after modeling but also compare the modeling quality of different modeling methods according to radial accuracy.
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