一种数字锁相环的参数设计方法

数字锁相环在实际通信系统中应用广泛，但其精确的环路参数设计比较困难。针对这一问题，以数字反正切载波恢复锁相环为例给出了一种环路参数设计方法，利用模拟环路和数字环路的对应关系，完成数字锁相环的参数设计。仿真结果表明了该方法的有效性。

Parameter Design in Digital Phase Lock Loops

Digital phase lock loops are widely adapted in nowadays communication systems. However, it is difficult to design the loop parameter precisely. To deal with the problem, the paper proposes a loop parameter design method taking a tanlock carrier recover loop as an example, which accomplishes parameter design in digital phase lock loops according to the connection between analog loops and digital loops. Simulation results show that the method is feasible.