Introduction - If you have any usage issues, please Google them yourself
Discussed the use of GPS Doppler shift observations to determine the speed of movement of the basic principles of vector, it is estimated that this method can achieve accuracy. To verify the method of reliability and stability, to do two tests: the static tests and dynamic tests, tests using the measured dynamic data-processing software VAES. Theoretical research and data-processing results show that the satellite distribution of better circumstances, the carrier rate of up to determine the accuracy of mm/s.