依据合成孔径雷达(SAR)距离方程和多普勒方程，用SAR成像参数可实现SAR图像的几何校正。
According to the Range Doppler equations, the geometric calibration of SAR image can be realized using SAR imaging parameters.
状态方程综合考虑了多普勒频移、定时误差。
Doppler frequency drift and timing error were considered in state transform equations.
双多普勒天气雷达反演风场是以直接合成法为基础，垂直速度通过连续方程得到，反演天气系统的三维风场。
Wind field retrieval from dual-Doppler radar data USES synthesis technique, and the vertical velocity is obtained by using continuity equation, then the three-dimensional wind fields are retrieved.
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