电容耦合相位鉴频器性能仿真分析  

Simulation and analysis on performance of phase frequency discriminator for capacitive coupling

作　　者：王红霞[1] 郭月婷 宋子轩 WANG Hongxia;GUO Yueting;SONG Zixuan(Electronic Engineering College,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《电子设计工程》2023年第15期36-40,45,共6页Electronic Design Engineering

摘　　要：针对电容耦合相位鉴频器节点电压波形转换抽象和传统实验调试难的问题,采用软件建立电路虚拟仿真模型,通过匹配输入信号和电路参数对应关系,获得了关键节点的节点波形和输出波形,通过测试不失真数据和失真数据获得了鉴频特性曲线,通过多个参数的步进扫描方式逐步获得了电路各个元件的最佳参数,实践证明,这种电路可视化的虚拟仿真调试方法能形象直观地展示节点波形,能有效验证抽象理论知识,提升学习质量。Aiming at the abstract problem of node voltage waveform conversion of phase frequency discriminator and the difficulty of traditional experimental debugging,the circuit simulation model is established by software.The node waveform and output waveform of key nodes are obtained by matching the correspondence between the input signal and circuit parameters;The undistorted data and distorted data are tested,and the frequency discrimination characteristic curve is obtained;Through variable scanning,the selection method of circuit parameters is described in detail.The virtual simulation and the debugging method of circuit has been proved to show the node waveforms visually,which can effectively verify the abstract theoretical knowledge and improve the quality of learning.

关 键 词：鉴频器 电容耦合相位鉴频器 可视化仿真 性能分析 

分 类 号：TN713[电子电信—电路与系统]