Improvement and Application Study of Planar Four Parameters Coordinate
Transformation Model
1 Department of Architecture Engineering, Suqian College, 399 South-Huanghe Road,Suqian 221116, China
2 NASMG Key Laboratory of Land Environment and Disaster Monitoring, China University of Mining and Technology,
1 Daxue Road,Xuzhou 221116, China
3 College of Geomatics Engineering, Nanjing University of Technology, 30 South-Pujiang Road,Nanjing 210009, China
Abstract：This article employs the method of applied numerical analysis theory to discuss the square matrix singularity discriminant. Focusing on the problem of ill-conditioned transformation model for planar four parameters normal equation coefficient matrix, the author puts forward the approach of coordinating the centralized coordinates with reducing the error equation coefficient. This approach effectively improves the structure of normal equation coefficient matrix and the ill-conditioned transformation model, and gains stable and reliable transformation parameters. Also, the article verifies that this method is simple and feasible through theory and case analysis, providing reference for the planar four parameters transformation in regional engineering surveying.
SUN Xiaorong,LI Mingfeng,LIU Zhiliang. Improvement and Application Study of Planar Four Parameters Coordinate
Transformation Model[J]. jgg, 2015, 35(1): 132-135.
