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stolt-migration

于 2011-03-16 发布文件大小:4190KB

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说明：地震偏移成像技术比较经典且易理解的资料，比较有用(Seismic migration imaging more classic and easy to understand information more useful)

文件列表：

stolt migration
...............\一种改进的基于Stolt迁移的探地雷达三维合成孔径成像方法.caj,292783,2011-01-16
...............\几种单程波动方程解法的对比.PDF,601271,2010-11-19
...............\基于F—K偏移及最小熵技术的探地雷达成像法.PDF,235989,2010-10-23
...............\基于NUFFT的探地雷达偏移成像算法.caj,607983,2010-11-24
...............\多普勒参数估计及SAR波数域算法研究.kdh,2594398,2010-10-27
...............\探地雷达频率波数域速度估计和成像方法的实验研究.PDF,148680,2010-10-24

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波数域算法又称为距离徙动算法（Range Migration Algorithm，RMA）或-算法，由Cafforio等提出。该算法分析距离处理后信号的二维频谱，通过二维频域匹配滤波进行相位补偿，在完成方位聚焦的同时完全校正距离徙动。由于其中的Stolt变换能克服SAR信号中距离徙动和SRC对斜距的依赖，因此波数域算法是一种理想的成像算法，尤其在处理大斜视角和长合成孔径的SAR数据时。但Stolt变换需要插值，降低了处理效率并引入额外的误差。(The wavenumber domain Algorithm is also called Range Migration Algorithm (RMA) or -algorithm, which is proposed by Cafforio et al.The algorithm analyzes the 2-d spectrum of the signal after the distance processing, carries out phase compensation through the 2-d frequency domain matching filter, and completely corrects the distance migration while completing the azimuth focusing.Because the Stolt transform can overcome the SAR signal range cell migration and SRC dependence on oblique distance, thus wavenumber domain algorithm is an ideal imaging algorithm, especially when dealing with large squint Angle and long synthetic aperture of SAR data.But Stolt transformation requires interpolation, reduces processing efficiency and introduces additional errors.)

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