二维大角度快反镜双线性插值拟合标定法  

Bilinear interpolation fitting calibration of two dimensional large angle fast steering mirror

作　　者：冀佳琦 刘洋[1] JI Jia-qi;LIU Yang(School of Instrument Science and Optoelectronics Engineering,Beijing Information Science and Technology University,Beijing 100192,China)

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192

出　　处：《激光与红外》2024年第11期1737-1743,共7页Laser & Infrared

基　　金：光电信息控制和安全技术重点实验室资助项目(No.202105509)资助。

摘　　要：为满足光电对抗设备中大转角范围的需求,对基于电涡流传感器的二维大角度快速反射镜角度测量系统的标定技术进行研究。设计了二维大角度快速反射镜标定系统,分析了标定系统的角度测量原理,通过对多项式拟合和双线性插值标定模型进行理论和残差分析,结合两种方法进行模型构建和实验测试。结果表明,在±7°(±25200″)角度范围内,运用双线性插值拟合法整体误差小于30″。通过与传统多项式拟合和双线性插值比对实验,表明双线性插值拟合法标定误差更小,定位精度更高,更适用于二维大角度快速反射镜标定。In order to meet the demand of large turning angle range in optoelectronic countermeasure equipment,the calibration 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 measurement 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 calibration 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 interpolation 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 

分 类 号：TN202[电子电信—物理电子学] TN97