基于STM32开发板的BDS/GPS数据实时采集与解码研究  

BDS/GPS Data Real-time Acquisition and Research on Decoding Arithmetic Based on Development Board of STM32

作　　者：刘扬[1] 余学祥[1] 徐炜[1] LIU Yang YU Xuexiang XU Wei(School of Geodesy and Geornatics, Anhui University of Science and Technology, Huainan 232001, China)

机构地区：[1]安徽理工大学测绘学院,安徽淮南232001

出　　处：《全球定位系统》2017年第3期61-65,共5页Gnss World of China

基　　金：国家自然科学基金(批准号41474026);安徽国土资源厅科技项目(编号:2011-K-22;2011-K-18);安徽理工大学研究生创新基金(编号:2017CX2056);淮南矿业(集团)有限责任公司项目(编号:HNKY-JTJS(2013)-28)

摘　　要：针对实时接收BDS/GPS数据丢失、存储不合理、解码精度低等问题,提出以基于STM32F103RET6微控制器为核心的开发板为载体,通过编写数据实时采集与解码算法,实现对数据的存储与计算,得到高精度的伪距、载波等观测值,并实时输出BDS/GPS组合系统伪距单点定位结果。测试结果表明,单点定位的标准差为9m左右,均方根误差为14 m左右,该开发板运行稳定、使用方便,可为实现多系统数据实时采集、解码和差分计算提供基础。According to the fact that it occurred data loss, unreasonable storage, low ac- curacy of decoding when receiving the real-time BDS/GPS data. This paper presented a pro- gram of the real-time data acquisition and decoding, taking the development board based on STM32F103RET6 microcontroller as carrier. It achieved data storage and calculation, and got high precision pseudorange, carrier observations. Meanwhile, it calculated the pseudor- ange single point positioning by combined BDS/GPS. The results show that the standard de- viation is about 9 meters and RMSE is about 14 meters, the development board is proved sta- ble and easy to use. This is the basis of data real-time acquisition, decoding and differential computation of multi-GNSS.

关 键 词：导航定位模块 数据格式 数据实时采集 解码 伪距单点定位 

分 类 号：P228.4[天文地球—大地测量学与测量工程]