The received satellite signal will be converted into digital Intermediate Frequency (IF) signal after the radio frequency front-end processing. As one of the crucial parts in IF signal processing

the accurate phase tracking can ensure the precise satellite signal decoding

distance ranging

and positioning. Based on this

this paper proposes a Phase Locked Loop (PLL) based phase tracking algorithm for QPSK modulated satellite signals. Specifically

the algorithm uses multiple orthogonal carriers and arc-tangent based phase detector to obtain accurate phase difference information

which finally forms a closed loop to lock the carrier phase for the tracking. Experimental results show that the multiple heterogeneous carrier is able to achieve fast phase locking. In addition

compared with the conventional Costas loop and Matsuo loop

the time cost for reaching steady state of our system is reduced by 20% and 24%

while the corresponding steady-state variance is reduced by 21% and 32% respectively.