基于Simulink的数字锁相环调频器研究与设计  

The Study and Design on Digital PLL Frequency Modulator Based on Simulink

作　　者：黄俊奇 

机构地区：[1]广州大学物理与电子工程学院,广东广州510006

出　　处：《聊城大学学报（自然科学版）》2014年第1期46-49,共4页Journal of Liaocheng University:Natural Science Edition

摘　　要：现代通信系统,广泛地将锁相环应用在调频和解调技术上.鉴相器、环路低通滤波器、压控振荡器构成锁相环的主体.本文运用Matlab提供的Simulink仿真平台,直观地搭建出数字锁相环调频和解调器仿真图,验证了数字锁相系统的闭环信号跟踪特性.Technology of phase-locked loop is widely used on frequency modulation and demodula tion in the area of modern communications. A phase-locked loop contains mainly a phase detector, a low pass filter of loop, and a voltage-controlled oscillator. This thesis, making use of Simulink in MAT LAB, constructs visually digital phase-locked loop simulation models of frequency modulator and demod ulator and verifies the characteristic of following signals in digital phase-locked loop systems.

关 键 词：SIMULINK 数字信号 锁相环 调频 

分 类 号：O59[理学—应用物理]