MATLAB仿真在信號處理中的應(yīng)用

論文編號:TX414  論文字數(shù):17810,頁數(shù):58

MATLAB仿真在信號處理中的應(yīng)用
摘  要

 《信號與系統(tǒng)》廣泛應(yīng)用于通信、自動控制、航空航天、電子信息、地震學(xué)、生物工程等領(lǐng)域，是許多理工科院校相關(guān)專業(yè)的重要專業(yè)基礎(chǔ)課。通過《信號與系統(tǒng)》基礎(chǔ)課程的學(xué)習(xí)，學(xué)生可以掌握信號處理的基本分析方法。但是，由于該課程的內(nèi)容十分抽象、學(xué)生不容易掌握相關(guān)知識，教師在講授信號處理的主要內(nèi)容時也不方便。因此，針對教學(xué)中存在的這種問題，為了教師在授課過程中可以形象化地講授這些抽象的內(nèi)容，也為了學(xué)生在學(xué)習(xí)過程中可以對信號處理產(chǎn)生濃厚的興趣，本文將以MATLAB軟件作為開發(fā)平臺，設(shè)計出基于MATLAB的信號處理仿真平臺，由此闡述MATLAB仿真在信號處理中的應(yīng)用。
 信號處理仿真平臺主要實現(xiàn)《信號與系統(tǒng)》的五個實驗，包括信號的基本運算，LTI系統(tǒng)的描述，響應(yīng)的求解，時域、頻域、復(fù)頻域的MATLAB仿真，Z域的分析。本信號處理仿真平臺改變了傳統(tǒng)的實驗方式，將《信號與系統(tǒng)》的實驗內(nèi)容集中在一個平臺上，操作簡單方便，結(jié)果直觀準確。該仿真平臺將采用友好的GUI界面設(shè)計，用簡潔的文字、豐富的圖面將抽象的內(nèi)容展現(xiàn)在學(xué)生面前，提高了學(xué)生對信號處理的學(xué)習(xí)積極性和主動性。
關(guān)鍵詞：信號處理仿真平臺 信號與系統(tǒng) GUI界面

 APPLICATION OF MATLAB IN SIGNAL PROCESSING
ABSTRACT

 "Signals and Systems " is widely used in communication, automatic control, aerospace, electronic information, seismology, bioengineering and other fields, is related in many important institutions of science and engineering basic course. Through the "Signals and Systems " basic courses, students can master the basic signal processing methods. However, because the course content is very abstract and not easy to grasp the knowledge of students, teachers, teaching signal processing in the main content is not convenient. Therefore, for such problems exist in teaching, to teachers in the teaching process can be taught to visualize the content of these abstractions, but also to students in the learning process can have a strong interest in signal processing, this will be the MATLAB software as a development Platform to design signal processing based on MATLAB simulation platform, which describes MATLAB Simulation in signal processing applications.

 Signal processing simulation platform is mainly to achieve "Signals and Systems" of the five experiments, including the basic operations signals, LTI systems described, the response of the solution, the time domain, frequency domain, complex frequency domain, MATLAB simulation, Z domain analysis. The signal processing simulation platform has changed the traditional way of experimental methods, the "Signals and Systems" experiment focused on a single platform, simple operation, intuitive and accurate results. The simulation platform will use friendly GUI interface design, using simple language, rich content of the abstract drawings show in front of students, improve student learning signal processing enthusiasm and initiative.
Key words：Signal Processing Simulation Platform  Signals and Systems  GUI Interface

目  錄

摘  要 I
ABSTRACT II
1前言 1
 1.1 目的、意義及研究現(xiàn)狀 1
 1.2 研究內(nèi)容 1
 1.3 可以解決的關(guān)鍵問題 2
 1.4 基本思路和方法 2
2信號處理仿真平臺綜述 3
 2.1 MATLAB簡介 3
2.1.1 MATLAB概述 3
2.1.2 GUI界面設(shè)計 4
 2.2 《信號與系統(tǒng)》實驗原理 4
2.2.1信號的基本運算 5
2.2.2 LTI系統(tǒng)的描述 5
2.2.3響應(yīng)的求解 6
2.2.4基于MATLAB的時域、頻域分析 7
2.2.5基于MATLAB的復(fù)頻域分析 8
2.2.6 Z域的分析 10
3信號處理仿真平臺設(shè)計方案 11
 3.1 方案概述 11
 3.2 設(shè)計目標 12
 3.3 設(shè)計原則 12
 3.4 設(shè)計步驟 13
 3.5 用戶范圍 13
4信號處理仿真平臺功能實現(xiàn) 14
 4.1 GUI界面功能展現(xiàn) 14
4.1.1功能概述 14
4.1.2設(shè)計實現(xiàn) 15
 4.2 信號的基本運算 15
4.2.1功能概述 15
4.2.2設(shè)計實現(xiàn) 16
 4.3 LTI系統(tǒng)的描述 20
4.3.1功能概述 20
4.3.2設(shè)計實現(xiàn) 21
 4.4 響應(yīng)的求解 23
4.4.1功能概述 23
4.4.2設(shè)計實現(xiàn) 24
 4.5 時域、頻域、復(fù)頻域的MATLAB仿真 26
4.5.1功能概述 26
4.5.2設(shè)計實現(xiàn) 27
 4.6 Z域的分析 29
4.6.1功能概述 29
4.6.2設(shè)計實現(xiàn) 30
 4.7 系統(tǒng)幫助模塊 31
4.7.1功能概述 31
4.7.2設(shè)計實現(xiàn) 32
5總結(jié)與展望 33
 5.1 總結(jié) 33
 5.2 展望 33
參考文獻 34
附  錄 35
謝  辭 48