Accuracy evaluation and application of urban coordinate system based on LiDAR

doi:10.13474/j.cnki.11-2246.2020.0328

Abstract

Abstract: Taking Guangzhou as an example, this paper expounds the traditional method of Gauss projection deformation. Combined with Guangzhou high-precision LiDAR and construction project with Guangzhou 2000 coordinate system, this paper introduces high-precision LiDAR data acquisition and DEM production process, designs two key technical methods of data processing of Gauss projection composite deformation, develops the automatic processing software and puts forward a new method of urban coordinate system accuracy evaluation.

Key words: LiDAR, Gauss projection, centralmeridian, DEM, accuracy evaluation

CLC Number:

HU Yaofeng, HU Xinran. Accuracy evaluation and application of urban coordinate system based on LiDAR[J]. Bulletin of Surveying and Mapping, 2020, 0(10): 101-105.

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Accuracy evaluation and application of urban coordinate system based on LiDAR

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