Based on analyzing the advantages of PLL and FLL,a new method of carrier tracking,which is combining FLL with PLL is presented in this paper.

• 在分析PLL和FLL环路各自优点的基础上,提出了一种FLL/PLL相结合的载波跟踪方法,分析了热噪声及载体动态性对载波跟踪环路的影响,得出了环路设计的最佳带宽。