RTS filtering with a combined view time comparison algorithm for GNSS navigation system

The combined common-view time comparison algorithm for GNSS navigation system is the key technology, The satellite navigation receiver can calculate the delay of signal transmission and transmit time and frequency. Compared with single system CV time comparison algorithm, the combined CV (Common View) time comparison algorithm considers the unification of time and space coordinates of different systems and data processing of time comparison results, and combines Kalman filtering and RTS post smoothing. Using Kalman filtering for the results, this research uses RTS post smoothing on the basis of filtering, in order to improve the precision of time comparison.