In order to meet the demand of large turning angle range in optoelectronic countermeasure equipment,the calibra-tion technology of two-dimensional large-angle fast steering mirror angle measurement system based on eddy current sensors is investigated,and the two-dimensional large-angle fast steering mirror calibration system is designed.The angular measure-ment principle of the calibration system is analyzed,and model construction and experimental testing are carried out by combining the two methods through theoretical and residual analyses of polynomial fitting and bilinear interpolation calibra-tion models.The results show that the overall error of applying the bilinear interpolation fitting method is less than 30"in the angular range of±7 °(±25200").Comparison experiments with the traditional polynomial fitting and bilinear interpo-lation show that the bilinear interpolation fitting method has a smaller calibration error,higher localization accuracy,and is more suitable for two-dimensional large-angle fast reflector calibration.
关键词
快速反射镜/二维大角度/双线性插值拟合/电涡流传感器/标定技术
Key words
FSM/2D large angle/bilinear interpolation fitting/eddy current sensors/calibration techniques
维普
万方数据