Analysis and application on RTCM format for differential GPS
Zhimin Liu, Wenjie Lin, Weiming Tang · 2004
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.