1. Then the synoptical conversion parameter is calculated by control coordinates and photogrammetric coordinates of three control points.
由控制点的已知控制坐标与求得的摄站坐标系下的坐标,进一步求得两坐标系的转换参数的初值;

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2. Then the synoptical conversion parameter is calculated by control coordinates and photogrammetric coordinates of three control points.
由控制点的已知控制坐标与求得的摄站坐标系下的坐标,进一步求得两坐标系的转换参数的初值;

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