基于MIMU的微小型组合导航系统研究  

Study on Miniature Navigation System Based on MIMU

作　　者：刘安鹏[1] 苑伟政[1] 常洪龙[1] 

机构地区：[1]西北工业大学微/纳米系统实验室,西安710072

出　　处：《弹箭与制导学报》2005年第S2期322-324,328,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：介绍了基于 MEMS 技术的 MIMU 的构成、工作原理及安装误差补偿方法,设计了一种由 MIMU 与微小型 GPS 接收器组成的导航系统,系统采用闭环反馈的校正方式,能对 MIMU 的位置、速度误差、数字平台误差及微惯性器件误差作出最优估计并实施反馈。仿真分析表明,该组合方式能抑制滤波发散,提高长期导航精度。该系统具有体积小、重量轻、功耗低的特点,可适用于微小型飞行器的导航任务。This paper describes a MIMU based on MEMS technology and its composing,operating theory and mounting error compensation method.A navigation system consisting of MIMU and micro GPS receiver is designed.The system adopts a closed loop feedback correction method,which can feedback MIMU with the best estimation for the errors of position,velocity and digital platform caused by MIMU and errors brought by inertial devices.The simulation result of the miniature navigation system shows that it can restrain the divergence and improve the long-term navigation accura- cy.The system has the characters of small size,light weight,low power,and can be applied in miniature aerocraft.

关 键 词：MEMS MIMU 安装误差 GPS 组合导航系统 

分 类 号：V249.328[航空宇航科学与技术—飞行器设计]