Chen Xijiang 1,2) ; Hua Xianghong 1,2) ;Lu Tieding 3) ;Zhai Gaopeng 4) ; and Yang Yanjing 3)
1)Institute of Surveying and Mapping, Wuhan University, Wuhan 430079;2)Hazard monitoring & prevention Research Center,Wuhan University, Wuhan 430079;3)Institute of Surveying and Mapping, East China Institute of Technology, Fuzhou 344000;4)The Station of Quality Supervision and Inspection about Surveying and Mapping Products, Shijiazhuang 050000
Abstract：The TLS fitting and estimation residuals will be upward with the increasing in the amount of observed data in the process of TLS fitting and estimation. In order to curb the trend, the adaptive regression is introduced to the TLS fitting and estimation. The appropriate regression model is used to analyze the residuals handled by gray method. The results of residual analysis is combined to the results of TLS fitting and estimation to weaken the impact of residuals. The experimental results confirm the feasibility of the method.
