MEMS SINS-GPS组合导航系统设计  

Design of MEMS SINS-GPS Integrated Navigation System

作　　者：马建仓[1] 陈静[1] 

机构地区：[1]西北工业大学电子信息学院,西安710129

出　　处：《传感技术学报》2009年第10期1437-1441,共5页Chinese Journal of Sensors and Actuators

摘　　要：为实现满足中低精度要求的低成本导航系统,选用MEMS惯性传感器研制了捷联式惯性导航系统(SINS);针对MEMS惯性传感器噪声较大和惯性导航系统误差随时间迅速累积的问题,利用小波对MEMS陀螺信号进行了降噪处理,并采用SINS-GPS卡尔曼滤波组合导航系统以消除惯导系统的误差累积,输出较高精度的速度、位置信息。对SINS和组合导航系统进行了仿真实验,实验结果表明所建系统的长时间导航性能有一定改善。In order to implement low cost navigation system which meets the needs of medium and low accuracy,MEMS strapdown inertial navigation system（SINS）was developed. Considering that MEMS inertial sensors give rise to a large number of noise and SINS error accumulated rapidly in a short time,wavelet to reduce the MEMS gyro signal noise was used and SINS/GPS integrated navigation system based on Kalman filter to eliminate error accumulation was built to improve the navigation precision. The simulation experiment of the SINS and integrated navigation system were conducted. The experimental results show that the long term navigation performance is improved with the built system.

关 键 词：惯性导航系统 组合导航 卡尔曼滤波 全球定位系统 

分 类 号：V249.32[航空宇航科学与技术—飞行器设计]