8号张之皓论文.doc.doc

内蒙古大学本科毕业设计学校代码 10126 学号 01061027 分类号密级本科毕业论文(设计) 基于 MATLAB 对模拟调制信号的仿真及识别学院、系鄂尔多斯学院电子信息科学与技术专业名称电子信息科学与技术年级 2010 级学生姓名张之皓指导教师杨元 2014 年 5月 6日内蒙古大学本科毕业设计基于 MATLAB 对模拟调制信号的仿真及识别摘要现代通信技术的飞速发展,使得在通信过程中能否对信号进行准确的识别也越来越重要,传统的单一的特定通信在现代化的多频段、多功能的通信中已经不能胜任,在这样的背景下, 就需要研究更好的识别方法来识别信号。首先运用 MATLAB 软件对 AM , FM , DSB,SSB 四种信号进行了仿真,然后分别对几种信号进行了调制并分析各信号的瞬时特征,继而设计出识别方法,最后利用这些瞬时特征参数和识别方法对模拟信号进行识别并得出识别方法的可行性。关键词 MATLAB ,模拟调制信号,识别内蒙古大学本科毕业设计 The Simulation and Recognition of Analog modulation signals based on MATLAB Abstract Author:zhangzhihao Tutor:yangyuan With the development of munication technology, the signal recognition requirements are also increasing in munication process and traditional munication in the modern multi-band, multi-munication has been outdate, so we need to study more identification method to identify the signal. This paper make a simple introduction for analog signal recognition method. In such under the background, it needs to research better identification methods to identify the signal. First, using four signals that is AM, FM, DSB, SSB to simulated, then analyzing the transient characteristics of each modulated signal, and then designing a it can describes a method to identify signal by instantaneous characteristics and verify its feasibility. key W ord MATLAB , Analog modulation signal , identify 内蒙古大学本科毕业设计目录摘要....................................................................................................................................................... Ⅰ Abstract .......................................................................................................................................................... Ⅱ 1 MATLAB 的概述...................................................................................................................................... 1 2各模拟信号的调制................................................................................................................................... 2 调幅调制......................