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The coordinate system involved in surveying and mapping is rather complicated. The combination transformation of coordinate systems can solve many problems in real life and work. At the same time, the transformation between coordinate systems is also a difficult problem to be solved urgently. Aiming at the parameters and characteristics of Beidou coordinate system and the projection parameters of local city coordinate system, a set of transformation methods suitable for Beidou coordinate and local city coordinate system are developed by combining parameter transformation algorithm, the feasibility of the algorithm is verified by transforming the known control points.

Study on the Method of Conversion from Beidou Coordinate System to Local Coordinate System