Principle and Realization of the Data Checking in GPS Communication
Huayun Chen · Gnss World of China · 2006
During the procedure of data communication with GPS,the receiving port shall conducts the error checking to all of the received data.The received the checksum codes shall be compared with the calculated checksum code,the data will be accepted if the two codes are consistent,and the instruct will be executed,or denied.Some error checking method commonly used in GPS data communication are analyzed in this paper such as sum check and Cyclic Redundancy Check,detailed calculation realization is also given in C language.