伪卫星/惯性/里程仪组合高精度地面车导航技术  

Pseudo-satellite/INS/Odometer Integrated High Precision Navigation Technology for Vehicle

作　　者：高文[1] 张京娟[1] 谢淑香[1] 冯培德[1] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100083

出　　处：《弹箭与制导学报》2006年第2期32-34,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：为提高地面车定位/定向精度,文中研究一种基于伪卫星/惯性/里程仪组合的导航技术。系统以平台式惯性导航系统作为主惯导、高精度里程仪用来测速、两个伪卫星地面基站测得的伪距差作为测量,仿真结果表明:东向定位误差可达到2m(1σ),北向定位误差可达到1m(1σ),方位误差达到20角秒。A Pseudo-satellite/INS/Odometer integrated navigation technology is developed in order to improve the positioning and orientation precision of vehicle. In this system, INS is used as main navigation system, odometer is used to measure velocity, and pseudo-satellite is used to measure the difference of pseudo-distance. Simulation results show that the error of the east direction can reach 2 meter（1σ）, the error of the north direction can reach 2 meter （1σ）, and the error of azimuth angle can reach 20 seconds.

关 键 词：伪卫星 惯性导航 里程仪 

分 类 号：V249.329[航空宇航科学与技术—飞行器设计]