单轴旋转式捷联惯导系统转位方案  

Single-Axial Rotation Modulation SINS Indexing Scheme

作　　者：尚松田[1] 付梦印[1] 刘彤[1] 

机构地区：[1]北京理工大学自动化学院,北京100081

出　　处：《北京理工大学学报》2011年第11期1318-1321,共4页Transactions of Beijing Institute of Technology

基　　金：国家部委重点基金资助项目(9140A26010110BQ0101)

摘　　要：对单轴旋转式捷联惯导系统进行研究,针对系统不隔离载体运动会使常值漂移不能被完全平均而产生较大误差的问题,提出一种新的转位方案.基于旋转式惯导系统的基本原理,对传统的四位置转停方案进行了改进.在不隔离载体运动的情况下,周期性地对载体运动给系统带来的误差进行补偿,从而使系统的精度大大提高,并且降低了系统的复杂程度.对陆用车辆和水上舰艇进行了计算机仿真,结果表明,该方案能够在不隔离载体运动的条件下,抑制因载体运动所产生的常值漂移误差,并对其进行实时补偿.Single-axis rotation strapdown inertial navigation system （SINS） is studied in this paper. A new rotation scheme is proposed to solve the problem that carrier motion has not been isolated which would cause incomplete error compensation leading to a considerable error. Based on the principle of rotation SINS, the traditional four-position rotation-stop method is revised to get the new rotation scheme. By using the proposed method, the errors caused by carrier motion are periodically compensated. In this way, the accuracy of the system can be greatly raised and the complexity of the system can also be reduced. Computer simulation has been taken for vehicles and vessels, and the result shows that the program can depress the constant drift errors caused by the carrier motion without isolating the carrier motion.

关 键 词：单轴旋转 捷联惯导系统 转位 常值漂移 

分 类 号：U666.12[交通运输工程—船舶及航道工程]