光纤陀螺捷联惯导系统中陀螺误差传播特性  

Characteristics of gyro error propagation on FOG-SINS

作　　者：何小飞[1] 王巍[1] 黄继勋[1] 

机构地区：[1]北京航天控制仪器研究所,北京100854

出　　处：《中国惯性技术学报》2007年第4期407-411,共5页Journal of Chinese Inertial Technology

基　　金：国防基础科研项目(C0320060532)

摘　　要：针对光纤陀螺误差的特点,研究了陀螺误差源在惯性导航系统的传播机理与传播过程。根据捷联惯导误差方程,推导了四元数漂移误差与角增量误差的关系,重点研究了随机游走误差和导航姿态误差的统计关系。通过实验和仿真,分析了随机误差(白噪声和有色噪声)对导航精度的影响。研究结果表明,光纤陀螺随机游走误差不影响导航精度。In view of the characteristics of FOG error, the propagation mechanism and process of FOG’s error-sources in inertial navigation system were studied. The relation between quaternion drift error and angular-increment error was deduced based on the error equations of strapdown inertial navigation system, focusing on the relation of random walk coefficient to navigation attitude error. The influences of random error（white-noise and colored-noise） on navigation precision were analyzed by test and simulations. The results show that RWC has no influence on navigation precision.

关 键 词：光纤陀螺 四元数漂移 随机游走 误差传播 

分 类 号：U666.1[交通运输工程—船舶及航道工程]