【摘要】 基于激光多边法的坐标测量系统可实现无目标点自标定,其测量精度受到自标定精度的影响。而系统的布局方式是自标定精度主要影响因素之一。通过对无目标点自标定模型误差传递规律的理论分析,对系统的布局方式进行优化,优化结果为直角三棱锥布局。仿真结果表明,直角三棱锥布局提高了自标定精度,从而保证了系统的测量精度。更多还原

【Abstract】 The three-dimensional(3D)coordinate measuring system based on laser multi-lateration can realize the non-target self-calibration.Its measurement accuracy is influenced by the self-calibration accuracy.However,the layout of the system is one of main impact factors on the self-calibration accuracy.By theoretical analysis of the nontarget self-calibration model,the result of the system layout optimization is the tri-rectangular pyramid layout.Simulation results show that the tri-rectangular pyramid layout can improve the self-calibration accuracy,thus can ensure the system accuracy.更多还原