FM传输系统及仿真

FM 传输系统及仿真FM 传输系统及仿真摘 要频率（Modulation Modulation，简称：FM）是一种信息的调制方式—瞬时频率变化率指示。在仿真的应用当中，载频与输入信号的幅度成正向比例。 频率调制的技术常常用在高保真无线电音乐和高频甚高频无线电上的语音传输。本设计旨在实现模拟信号的频率调制过程并解调调制后的信号。系统的设计和模拟是用 System View 软件完成的。仿真结果与理论分析相吻合。关键词：瞬时频率；FM 传输系统；Systemview；频率调制；解调FM transmission system & simulationAbstractFrequency (FM) is a modulation mode of instantaneous frequency change rate indication information. In analog applications, the carrier frequency is proportional to the amplitude of the input signal. FM technology is usually used for voice transmission of hi fi radio music and hfvhf radio.This design aims to realize the frequency modulation process of analog signal and demodulate the modulated signal. System design and simulation are realized by system view software. The theoretical analysis as like as two peas simulation results is the same.Keywords: Instantaneous frequency;FM transmission system;Systemview; Frequency modulation;demodulation of signal目 录1 前言...............................................................................11.1 本设计的目的、意义及应达到的技术要求.............................................11.2 本设计在国内外的发展情况以及潜在的问题...........................................11.3 本设计当要解决的主要问题...................................12 本设计.............................................................................22.1 FM 调制与解调原理................................................................32.1.1 FM 信号的调制过程..............................................................62.1.2 FM 信号的解调过程..............................................................82.1.3 FM 信号的波形频谱与系统抗噪性能分析............................................