一种适于计算机软件化实现的锁相环数学模型,分析不同参数对锁相环捕获和跟踪性能的影响,得出不同情况下参数设定的基本准则。-A computer software suitable for the realization of the phase-locked loop mathematical model, analysis of different parameters on the phase-locked loop tracking performance capture and the impact of circumstances have come to different parameter settings of the basic criteria.