对系统参数的精确标定是研制高精度测量仪器过程中的重要工作。对于多通道舰载星敏感器来说, 其光学系统和设备结构参数的精确标定是进行精确定位的重要前提。综合考虑舰载星敏感器光学系统中存在的原点误差、指向误差、轴系不正交、比例尺误差、倾斜误差以及畸变建立了光学系统参数标定模型和方法, 结合多通道的系统结构特点建立了设备结构参数标定方法。方法总体标定精度约 5″, 满足舰载星敏感器定位精度需求。

Accurate calibration of system parameters is a very important mission in the development of high-accuracy measurement equipment. As for multi-channel shipboard star sensor, calibration of the optical system parameters and the equipment structure parameters is an important prerequisite for accurate positioning. Comprehensively considering origin error, directing error, non-orthogonal of the axes, scale error and inclination error of the optical system, the calibration model and method of the optical system parameters is established. The calibration method of the equipment structure parameters is established according to the structure features of multi-channel. The accuracy of the calibration method is about five arcseconds, which is high enough for positioning accuracy of shipboard star sensor.