CAJ | 학술논문

NMEA协议是为了全球定位系统（GPS）导航设备中建立统一的海事无线电技术委员会（RTCM）标准，是由美国国家海洋电子协会（NMEA）制定的一套国际通用的ASCII数据格式。目前很多无线通讯设备接口及通讯协议都遵循NMEA-0183格式。本文通过串口通信中ASCII实时数据流的格式介绍，对实时数据流解析方法进行了研究，并基于VC＋＋2008编写了解析不同格式ASCII数据流解析程序，为卫星导航定位中实时数据的正确获取提供一定帮助。
NMEA협의시위료전구정위계통（GPS）도항설비중건립통일적해사무선전기술위원회（RTCM）표준，시유미국국가해양전자협회（NMEA）제정적일투국제통용적ASCII수거격식。목전흔다무선통신설비접구급통신협의도준순NMEA-0183격식。본문통과천구통신중ASCII실시수거류적격식개소，대실시수거류해석방법진행료연구，병기우VC＋＋2008편사료해석불동격식ASCII수거류해석정서，위위성도항정위중실시수거적정학획취제공일정방조。
The USA National Marine Electronics Association developed a set of universal ASCII DATA Format ,the NMEA protocol for the establishment of a unified RTCM naviga-tion device (RTCM ) standard in GPS (Global Positioning System ) .At present a lot of wire-less communications equipment interface and communication protocol according to the format of NM EA-0183 .By studing on ASCII serial communication in the real-time data stream for-mat and the method of resolving real time data ,and ,writing the program of the method on the platform of VC+ + 2008 ,this paper can povide some help for the accurate real time data acquisition in satellite navigation and positioning .