一种新的高精度光纤平台系统级标定方法  

A New System-Level Calibration Method for High-Precision Fiber Optic Platform System

作　　者：张文 王庭军 王雷 陶陶 ZHANG Wen;WANG Tingjun;WANG Lei;TAO Tao(No.16 Institute of No.9 Academy of China Aerospace Science&Technology Corporation,Xi’an 710000,China)

机构地区：[1]中国航天科技集团公司第九研究院第16研究所,陕西西安710000

出　　处：《压电与声光》2022年第5期806-811,共6页Piezoelectrics & Acoustooptics

基　　金：火箭军装备预研基金项目资助(104050303)。

摘　　要：针对高精度光纤平台系统误差补偿的需求,有效地提高光纤平台的应用精度及启动快速性,该文考虑了加速度计的杆臂误差、惯性仪表的时间不同步误差、安装误差及标度因数误差等误差特性,建立了两级标定的Kalman滤波方程。采用Kalman滤波法实现误差参数的辨识,并对该方法进行了仿真分析和实验验证。仿真和实验结果表明,所设计的系统级标定方法能够估计出所有的误差参数,且具有较高的应用性能,对于提升高精度光纤平台的应用精度具有重要意义。Aiming at the need for high-precision error compensation,higher application accuracy and faster startup speed of the fiber optic platform system,the article takes the error characteristics such as the lever arm error of the accelerometer,time asynchronous error of the inertial instruments,the installation error and the scale factor error into account,the two-level calibration Kalman filter equation is established.The Kalman filtering method is used to identify the error parameters,and the method is simulated and verified by experiments.The simulation and experimental results show that the designed system-level calibration algorithm can estimate all error parameters and has higher application performance,which is of great significance to improve the application accuracy of the high-precision fiber optic platform system.

关 键 词：平台系统 高精度光纤陀螺 误差参数 两级标定 卡尔曼滤波 

分 类 号：TN384[电子电信—物理电子学]