中文摘要：

为提高结构光目标角度测量的精度,对结构光系统结构参数与角度测量精度的关系进行了研究。首先,从结构光测量原理出发,分析了影响角度测量精度的主要系统结构参数;其次,对结构参数影响角度测量精度的规律进行了仿真研究,提出了优化的结构参数取值范围;最后,通过实验证明：该优化参数可有效提高转角测量精度,为后续基于结构光的3D四轮定位仪的改进方案奠定设计基础。

英文摘要：

To improve the measurement precision of the structured light target angle,this paper studies the relation between the structured light system parameters and measurement accuracy of the angle.Firstly,the main system structure parameters influencing the angle measurement precision are analyzed based on the structured light measurement principle;secondly,simulation research on the laws of how the structured parameters influence the angle measurement precision are conducted,and the optimized range of values of the structured parameters is proposed;finally,the experimental studies show that,the optimized parameters can improve the angle measurement precision effectively,which lays the design foundation for later improvement schemes of the structured light 3Dfour-wheel alignment instrument.