基于MEMS加速度计的无陀螺车辆导航技术  

Gyroscope—free Vehicle Navigation Techniques Based on MEMS Accelerometer

作　　者：陈长风[1] 时伟[2] 吴美平[1] 曹聚亮[1] 安臣 

机构地区：[1]国防科学技术大学机电工程与自动化学院,长沙410073 [2]中南大学航空航天学院,长沙410083

出　　处：《计算机测量与控制》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)

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.

关 键 词：无陀螺捷联惯导系统 MEMS加速度计 车辆导航 仿真 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]