...研究--《国防科学技术大学》2007年硕士论文 -29 3.2 平动补偿方法 29-33 3.2.1 特显点法 29-30 3.2.2 图像偏移(Map-Drift，MD)自聚焦 30-31 3.2.3 相位梯度自聚焦(PGA) 31-32 3.2.4 秩一相位误...
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在多普勒调频斜率估计中，时频分析法比较直观，估计精度也不错，脱机处理中获得了广泛的应用，图像偏移法估计速度快，在运动补偿中得到了应用。
Image offset method that is also fast can be applied to motion compensation, time-frequency method is intuitionistic and have a better accurate, which is applied extensively on offline.
并利用图像质心不变的假设，解决了线性相位引起的图像方位位置偏移问题。
More, based on the assumption that image cancroids is changeless, we resolve the image azimuth shift problem caused by linear phase errors.
射线数字成像检测是质量检测的一种重要方法，获取的射线图像往往会发生偏移或旋转。
Digital radiography is important means for inspecting the quality of subject, original X-ray image is however often rotary or offset.
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