双轴连续旋转的光纤陀螺捷联惯导误差分析  

Error Analysis of FOG Strap-down INS with Dual-axis Continuous Rotation

作　　者：柳明[1,2] 王海军[1,2] 常国宾[3] 

机构地区：[1]山东省高校航空信息与控制技术重点实验室(滨州学院),滨州256603 [2]滨州学院航空信息技术研发中心,滨州256603 [3]海军工程大学电气与信息工程学院,武汉430033

出　　处：《载人航天》2012年第5期45-50,共6页Manned Spaceflight

基　　金：山东省科技发展计划项目(2011GGA16054)

摘　　要：系统级旋转自补偿技术能使捷联惯性导航系统的误差发散得到一定程度的抑制,这是在元件精度水平不变的情况下提高系统精度的有效方法。将双轴连续旋转自补偿技术引入到捷联式惯性导航系统的方案设计中,对系统误差特性进行分析,计算机仿真试验验证可较好抑制元件常值漂移和缓变漂移,而对元件随机噪声引起的系统误差不存在调制效果;由于安装误差和刻度系数误差与载体角速度耦合,它们在动态条件下带来的系统误差调制效果不明显。The error divergence of strap-down inertial navigation system can be inhibited to a certain extent by the system-level rotating self-compensation technology, and this is an effective way to improve the accuracy of the system under the same level of components accuracy. The dual-axis continuous rotation serf-compensation technology is introduced to the scheme design of the strap-down inertial navigation system, and the system error characteristics are analyzed. Simulation results show that the constant drift and slowly-varying drift can be better inhibited, but there is no modulating effect for the system error caused by component random noise. Due to the installation error and scale coefficient error coupled with carrier angular velocity, the modulating effect of systematic errors under dynamic conditions is unohvious.

关 键 词：光纤陀螺仪 捷联惯导 双轴连续旋转 误差分析 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计] U666.12[交通运输工程—船舶及航道工程]