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研究了系统最佳布局下的最佳测量区域问题,给出了几何精度衰减因子PDOP在三维空间内的变化规律。通过计算机仿真研究了最佳测量布局对系统自标定的影响规律,指出最佳测量布局中的标称配置对系统自标定精度的影响最小,同时这种布局有着最小的几何精度衰减因子。
The best measurement area under the optimal layout of the system is studied, and the variation regularity of geometric precision attenuation factor PDOP in three-dimensional space is given. The influence of the best measurement layout on the self-calibration of the system is studied by computer simulation. It is pointed out that the nominal configuration in the best measurement layout has the least influence on the calibration accuracy of the system, and this layout has the smallest attenuation factor of geometric accuracy.