摘要
通过对RTCM电文内容的分析,就应用中RTCM电文的编码方法和存在的问题进行了探讨,根据DGPS所需要达到的区域范围、环境状况以及经济承受力,选择DGPS差分电文RTCM的发送方式;采用奇偶校验码进行校验,以确保所接收电文的正确性;进行字节滚动,以保持RTCM电文的逻辑序列.
Real-time differential GPS(RTDGPS)technique is widely used to improve positioning accuracy and reliability. The DGPS information is transmitted to GPS users on a standard data format and received in RTDGPS positioning. RTCM is an international general format and is applied earliest. RTCM data format is introduced in detail. Furthermore, RTCM coding application is discussed:to select different ways to transmit DGPS codes; to take on the RTCM parity check coding method in order to make sure the correct rate of the DGPS information and to use byte rolling to keep the consecution of RTCM codes.
出处
《桂林工学院学报》
2004年第2期188-191,共4页
Journal of Guilin University of Technology
基金
广西自然科学基金资助项目(0339072)
