small-aperture migration 小孔径偏移
Migration though resolution cell(MTRC) of scatters often occurs in inverse synthetic aperture radar(ISAR) imaging.
逆合成孔径雷达（ISAR）转台成像中散射点越距离单元徙动（MTRC）时有发生。
The main parameters that effect horizontal resolution of migration imaging were identified as medium velocity, dominant frequency of seismic wavelet and aperture Angle of migration processing.
结果表明，影响偏移成像水平分辨率的主要参数是介质速度、地震子波主频和偏移处理的孔径角。
Because of influence of aperture of migration operator, the image of 3-d seismic data volume in space is smeared after migration, which is unfavorable for detecting the faults.
但由于偏移算子的孔径影响，经偏移得到的三维地震数据体在空间上被模糊了，不利于进行断层检测。
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