多传感器组合导航系统研究  

Study on Multi-Sensor Combined Navigation System

作　　者：刘瑞华[1] 刘建业[1] 孙永荣[1] 

机构地区：[1]南京航空航天大学,南京210016

出　　处：《航天控制》2001年第2期67-72,80,共7页Aerospace Control

摘　　要：设计了一种由INS、GPS和Doppler测速雷达构成的多传感器组合导航系统。采用GPS伪距、伪距率以及Doppler速度与INS组合 ,建立了其卡尔曼滤波方程 ,设计了飞行轨迹 ,给出了惯性元件精度较低时组合系统的仿真输出。仿真结果表明 ,多传感器组合导航系统能有效提高导航精度 ,降低对惯性元件的性能要求 。A multi-sensor navigation system composed of INS , GPS and Doppler was designed in this paper. An integrated system was established utilizing pseudo range, pseudo range rate and Doppler velocity. We construct the Kalman filter equation, design the flying profile, and then simulated the integrated system when the IMU performance is low. The simulation results bring out the conclusion that the multi sensor navigation system can greatly improve the navigation performance, depress the demand of the IMU . It points out the development direction of the navigation system.

关 键 词：组合导航系统 INS 雷达 多传感器 元件 伪距 导航精度 仿真结果 组合系统 测速 

分 类 号：V249[航空宇航科学与技术—飞行器设计] TN967.2[电子电信—信号与信息处理]