一种陀螺稳定平台瞄准线漂移的惯性补偿方法  

Inertial compensation method for LOS drift of gyroscope stabilization platform

作　　者：薛媛元[1] 陈文建[1] 康婷颋[1] 陈颖[1] 张夏疆[1] 杨远成[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065

出　　处：《应用光学》2016年第2期177-182,共6页Journal of Applied Optics

基　　金：国防支撑项目

摘　　要：针对陀螺稳定平台系统中地球自转引起的瞄准线漂移问题,提出一种基于惯性姿态信息的瞄准线漂移补偿方法。该方法根据惯导系统解算得出的平台地理坐标和姿态信息计算出地球自转角速率在光电稳定平台坐标系上的投影,稳瞄控制单元利用该投影信息自动补偿平台上的速度反馈数据,消除由地球自转造成的瞄准线漂移。试验结果显示,使用该补偿方法后的方位漂移及俯仰漂移分别是1.69mrad/h和1.84mrad/h,远小于不加该补偿方法时的方位漂移6.89mrad/h及俯仰漂移7.32mrad/h,证明该方法可有效补偿瞄准线漂移。To resolve the problem of line-of-sight（LOS）drift caused by the earth＇s rotation in gyro-stabilized platform,a LOS drift compensation method based on inertial attitude parameters was proposed.According to the geographic coordinate and the platform＇s attitude information computed by the inertial system,the method calculated the earth rotation angular rate＇s projection on the opto-electronic stabilized platform coordinate system.Using this projection,the sight-stabilizing control unit compensated the speed feedback signals,thereby the LOS drift caused by earth＇s rotation was reduced.Test results show that using the compensation method,the azimuth drift amount is 1.69mrad/h and the pitch drift amount is 1.84mrad/h,far less than the drift amount of 6.89 mrad/h in azimuth orientation and 7.32 mrad/h in pitch orientation without using compensation method,which proves that this method can effectively control the LOS drift.

关 键 词：稳瞄系统 惯性姿态信息 瞄准线漂移 漂移补偿抑制 陀螺稳定平台系统 

分 类 号：TN206[电子电信—物理电子学]