基于LabVIEW的软件数字锁相环实现

锁相环在测控、数字信号处理等领域有着广泛的应用。软件锁相环成为锁相环发展的趋势之一,根据锁相环路的基本组成及原理,利用LabVIEW软件提供的强大的数值计算和信号分析等能力对软件数字锁相环进行设计。实验和仿真结果表明该软件锁相环具有较好的捕获和跟踪性能。利用软件实现的锁相环比硬件锁相环具有更好的灵活性和通用性,同时具有结构简单、参数设计灵活等优点。

Design of Software and digital Phase- locked Loop Based on LabVIEW

Phase-locked loop(PLL)has broad application in the field of measurement and control,digital signal processing.The software PLL has became a trend of the development of PLL.With a great capacity of digital computing and signal analysis,a software and digital PLL is designed based on the basic principles and composition.Experimental and simulation results show that the software PLL has better performance of capture and tracking.The PLL designed by software has a higher flexibility and versatility than that by...