Research on Coordinate Transformation from Local Plane Coordinate System to CGCS2000 Based on Plane Four Parameter Model

doi:10.13474/j.cnki.11-2246.2018.0214

Abstract

Abstract: Based on current results in Yangjiang,the paper has discussed the optimal approach of 2 dimensional and 4 parameters coordinate transform from city system to China Geodetic Coordinate System 2000.Focusing on density of common points and its impact on transform,our research has found that transform error is increased with the increase of gaps among common points,but the error can remain within 5 cm when the gaps are less than 60 km.Considering the linear and parallel differences between two corrdinate systems,we can remove common points with blunders and achieve optimal results,which is especially usefull for transform of old,unsteady and degrading network regions.

Key words: CGCS2000, local plane coordinate system, plane four-parameter model, coordinate transformation

CLC Number:

P226

ZHANG Haitao, JI Min. Research on Coordinate Transformation from Local Plane Coordinate System to CGCS2000 Based on Plane Four Parameter Model[J]. 测绘通报, 2018, 0(7): 74-77,91.

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