传感技术学报2011，Vol.24Issue(6)：919-922,4.DOI:10.3969/j.issn.1004-1699.2011.06.028
基于单片机的GPS/MEMS陀螺仪航向角实时测量系统
GPS and MEMS Gyroscope Real-Time Heading Angle Measurement System Based on SCM
摘要
Abstract
In view of the problem that the measurement error for the gyroscope accumulated over time and GPS's poor reliability in a dynamic environment, GPS and MEMS gyroscope real-time heading angle measurement system based on SCM( Single Chip Machine) is proposed and designed. In the system, C8051F021 microcontroller was taken as the core processor,GPS and MEMS gyroscope were combined. Meanwhile, 1PPS( Pulse Per Second) pulse signal of GPS receiver was used as the synchronization label, to achieve real-time correction of MEMS gyroscope heading angle solving,and obtain high accuracy and reliability of the letter heading information. Experimental results show that the system can correctly and reliably measure vehicle heading information in real-time, the actual heading error was controlled with less than ± 1 °, with high practical value and broad prospects.关键词
MEMS陀螺仪；GPS；航向角；坐标系统一Key words
MEMS gyroscope/GPS/heading angle/coordinate system unity分类
航空航天引用本文复制引用
蒋窍,李杰,刘俊,杜英..基于单片机的GPS/MEMS陀螺仪航向角实时测量系统[J].传感技术学报,2011,24(6):919-922,4.基金项目
国家自然科学基金项目(50905169) （50905169）
