安装误差对单轴旋转对准精度影响分析  

Analysis of Effect of Installation Error on Alignment Accuracy of Single-Axial Rotation

作　　者：刘鑫 贾继超 黎坤 赵瑞星 董树冰 LIU Xin;JIA Jichao;LI Kun;ZHAO Ruixing;DONG Shubing(16 th Institute,China Aerospace Science and Technology Corporation,Xi’an 710100,China;Third Military Representative Officeof Rocket Force Equipment Department in Xi’an Area,Xi’an 710100,China)

机构地区：[1]航天科技集团九院16所,陕西西安710100 [2]火箭军装备部驻西安地区第三军事代表室,陕西西安710100

出　　处：《压电与声光》2020年第5期721-723,共3页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(61701387)。

摘　　要：针对激光陀螺单轴旋转惯导系统初始对准问题,分析了影响初始对准精度的惯性器件误差参数,理论推导了陀螺安装误差对对准精度及加速度计零位估计的影响,并进行了仿真分析。仿真结果表明,陀螺安装误差直接带入失准角估计误差,并会引起等效加速度计零位估计误差,可通过标定陀螺安装误差提高对准精度。Aiming at the problem of initial alignment of the laser gyroscope single-axial rotation inertial navigation system,the error parameters of the inertial device affecting the alignment accuracy are analyzed,the effect of gyroscope installation error on the alignment accuracy and accelerometer bias estimation is analyzed and the simulation is carried out.The simulation result indicates that the gyroscope installation error can bring alignment error and accelerometer bias error.The alignment accuracy can be improved through calibrating accurately the gyroscope installation error angles.

关 键 词：捷联惯导系统(SINS) 多位置对准 单轴旋转 卡尔曼滤波 失准角 安装误差 

分 类 号：TN966[电子电信—信号与信息处理] V249[电子电信—信息与通信工程]