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.
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)
出处
《压电与声光》
CAS
北大核心
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)。
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
strapdown inertial navigation system(SINS)
multi-position alignment
single-axial rotation
Kalman filter
misalignment angle
installation error
作者简介
刘鑫(1996-),男,陕西省宝鸡市人,硕士生,主要从事高精度捷联惯性技术的研究;通信作者:贾继超(1977-),男,河南省新乡人,研究员,主要从事惯性导航相关技术的研究。E-mail:jjc197697@sina.com。
