摘要
设计了一种基于低成本MEMS加速度计的无陀螺车载捷联惯导系统,将高精度的MEMS加速度计安放在载体非质心处,代替陀螺来测量载体角运动信息,实现车辆的GPS信号被遮挡时短时间内的导航定位定姿要求;仿真结果表明:对于300 s时间内导航的载体,无陀螺车载捷联惯导系统的位置误差达到了0.0002°,满足导航的精度要求。
An integrated Gyroscope--free vehicle strapdown inertial navigation system based on low--cost accelerometer is devised. By the MEMS accelerometer with high accuracy will be placed at the non center of mass in this System to measure angular motion information in- stead of MEMS gyro. Realization of the vehicle＇ s navigation requirement on position and attitude determination when GPS signal is sheltered in a short period of time. Simulation results show that for 300s time navigation, the gyro-- free vehicle strapdown inertial navigation system＇ s Position error is reached 0. 0002°, it can meet the demands of navigation accuracy.
出处
《计算机测量与控制》
北大核心
2014年第3期851-853,共3页
Computer Measurement &Control
基金
中南大学大学生创新训练计划资助项目(CL12303)
关键词
无陀螺捷联惯导系统
MEMS加速度计
车辆导航
仿真
gyro--free strapdown inertial navigation system （GFSINS） MEMS accelerometer vehicle navigation simulation
