Abstract:To solve the problem of ill-conditioned normal equation coefficient matrix for big rotation angle’s three-dimensional coordinate transformation model, an improved model is put forward, based on coordinate centralization combined with adaptive scaling. Through analysis of an example, it is verified that the ill-conditioned normal equation coefficient matrix can effectively be improved with the model, with results that are more reliable than the existing model.
LI Mingfeng,LIU Zhiliang,WANG Yongming et al. Study on an Improved Model for Ill-Conditioned Three-Dimensional Coordinate Transformation with Big Rotation Angles[J]. jgg, 2017, 37(5): 441-445.