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Moreover, wa have calculated some sets of local bump orbit coefficients with the matrix elements, with which a local beam orbit correction has been successfully carried out.
并利用最小二乘法计算得到三个校正铁的凸轨系数，用于束流闭轨的局部凸轨校正，取得了预期的效果。
To use the data after separation of satellite and rocket in the process of calculating orbit, a correction method is proposed.
为了使航天测控中星箭分离后得到的数据能够在定轨时获得应用，提出了一种修正方法。
Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
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