RIEGLLMS—Z390i三维激光扫描仪测角精度评定方法研究

Research of Methods on the Angle Accuracy Behavior of RIEGL LMS-Z390i Laser Scanner

提出了一种新的三维激光扫描仪测角精度评定方法，用TM5100电子经纬仪建立角度基准，以RIEGLLMS—Z390i激光扫描仪观测的点云坐标反算出的角度作为观测值，在考虑轴系误差的影响基础上，建立了平差模型，通过最小二乘解算出激光扫描仪的水平、垂直测角精度分别为0．0027°、0．0015°，评定出该方法的可行性。

A new method to assess the angle accuracy of 3 D Laser Scanner is presented. TM5100 electronic theodolite was used to set up datum angle, and the angle accuracy of RIEGL LMS-Z390i Laser Scanner was assessed. The observed angle was obtained by 3D coordinate of point-clouds, and the analysed axes errors of 3D Laser Scanner is used to set up the calibration model. According to the least squares adjustment,the angle accuracy were 0. 002 7° and 0. 001 5°, so the new method was feasible.