文章摘要信息 关键词 ： SAR 空变误差 相位梯度自聚焦 [gap=1189]Keywords : SAR;Range-dependent error;phase gradient autofocus
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传统的相位梯度自聚焦 phase gradient autofocus ; PGA
相位梯度自聚焦算法 phase gradient autofocus ; phase gradient autofocus algorithm
带式相位梯度自聚焦 strip phase gradient autofocus
条带式相位梯度自聚焦 strip phase gradient autofocus
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论文的附录对相位梯度自聚焦的两种算法进行了较详细的推导。
In the appendix, two kind of PGA algorithms are obtained in details.
在现有的相位补偿方法中，相位梯度自聚焦（PGA）算法是较好的一种。
Of the existing phase compensation methods, the phase gradient autofocus (PGA) algorithm is a better one.
加权相位梯度自聚焦（PWE PGA）算法考虑了距离变化对相位误差的影响，扩展了PGA算法的应用范围。
Phase Weighted Estimation PGA(PWE PGA)is suggested which takes into consideration the range dependent phase error, so the PGA can be used in more fields.
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