组合式三维坐标测量与误差分析

Combined 3D Coordinate Measurement and Error Analysis

根据全站仪测量系统与经纬仪工业测量系统的误差特性,利用Matlab仿真出全站仪测量系统精度模型、经纬仪工业测量系统精度模型、构型参数对测量精度影响模型等。依据仿真模型进行误差分析,得出最佳的测站位置、基准尺摆放位置。利用精密标定过的多用型觇板对全站仪的距离观测值进行改正,构建高精度的全局控制测量空间。通过公共点在两套系统下的三维坐标值,将终端测量数据转换到全局控制全站仪坐标系下,统一坐标系统。最后,多次测量已知基准尺的长度,对组合式测量系统进行精度评定。

According to the error characteristics of total station and theodolite industrial measuring system, using matlab software simulation of 3D coordinate transformation model, the model precision of total station and theodolite industrial measurement system, configuration parameters influence on the measurement accuracy model. On the basis of the above simulation model, analyze the optimum position of measurement, standard ruler location. Using a precision calibrated multi-functional target correct distance by total station observe , building a global control precision measurement space. Using of 3D coordinates of common point in the two systems, the terminal data is transformed to the global control system coordinate of total station, uniform space coordinate system. Finally, multiple measuring the known base length, accuracy assessment of the combined measurement system.