RDSS system of Compass provides the service of two-way timing. In this paper, the factors which may affect the precision of system are analyzed according to the theory of RDSS two-way timing. Through the experimental data in Sanya, each of the factors is calculated and analyzed. The results show that the ionospheric error and multipath error have some impact on the RDSS two-way timing error, but the impact is small, while the approximation error which is caused by ignoring satellite motion and the RDSS two-way timing error is fairly close in magnitude, so the approximation error may be the main factor which causes the error of RDSS two-way timing.
展开▼
