반응형 message1 GPS Navigation data structure ▷Navigation Data Structure - Navigation data is modulo 2 added to P and C/A codes at 50 bps. - Each data frame requires 30 sec for transmission and consists of five 300 bit subframes. - Subframe 1 contains clock correction parameters and special data. - Subframe 2 and 3 contain precise SV ephemeris data. - Subframe 4 contains special message data. - Subframe 5 contains constellation almanac data.. 2023. 10. 18. 이전 1 다음 반응형