A new scheme of TWSTFT receiver for multiple access interference suppression

The two-way satellite time and frequency transfer (TWSTFT) is one of the most precise methods for international time and frequency comparisons. Due to the multiple access interference (MAI), the stability of TWSTFT could be degraded. To suppress the MAI for improving the measurement stability, we proposed a new scheme of TWSTFT receiver by implementing the successive interference cancellation procedure on the software-defined receiver. The results improvement with our proposed scheme is demonstrated in this paper.