为了实现仿生复眼成像系统的误差分析, 介绍了一种误差分析的方法。建立了数学模型, 通过找出坐标系的基底转换矩阵实现大地坐标和以子眼为原点的坐标系之间的转换, 推导出当仿生复眼工作时其旋转角度与各参量之间的数量关系式, 即系统的测量方程。运用函数误差方法将测量方程转化为误差函数方程, 从而进行误差分析。并且搭建了实验, 采集了实验数据, 通过比对理论计算值与实际测量数据验证该分析方法的可行性。计算得系统理论旋转角度误差为 3′14″, 实际测得的旋转角度误差 3′15″, 理论计算值与实际测量值基本一致, 证明该误差分析方法是可行的。

In order to realize the error analysis of the bionic compound eye imaging system, a method of error analysis was introduced. The mathematical model was established. By finding the conversion matrix of the coordinate system, the transformation between the geodetic coordinate and the coordinate system with the subeye as the original point was realized. The equation of quantity relation between the rotation angle and the parameters of the bionic compound eye, that is, the measurement equation of the system, was derived. By using the method of function error, the measurement equation was transformed into an error function equation, and the error analysis was carried out. The experiment was set up, and the experimental data were collected. The feasibility of the analysis method was verified by comparing the calculated values with the actual measurement data. Theory calculated rotation angle systematic error is 3′14″. Actual measured rotation angle error is 3′15″. The calculated value of the theory is in agreement with the actual measured value, which proves that the error analysis method is feasible.