《信號與系統》課件的設計與實現

電子通信論文編號:TX119  字數:27193.頁數:50   

目    錄

引言  1
1  CAI課件設計概述  2
1.1 計算機要求  2
1.1.1計算機硬件要求  2
1.1.2計算機軟件  2
1.2 《信號與系統》CAI課件制作的分析  2
1.2.1《信號與系統》CAI課件制作的必要性   2
1.2.2《信號與系統》CAI課件制作的教學性  3
1.2.3《信號與系統》CAI課件制作的教育性  3
1.2.4《信號與系統》CAI課件制作的觀賞性  3
1.2.5《信號與系統》CAI課件制作的積件性  4
1.2.6《信號與系統》CAI課件制作的網絡性  4
2  《信號與系統》課程要點分析  4
2.1 信號的分類  5
2.2 連續時間系統的時域分析  6
2.3 連續時間信號的傅立葉分析  6
2.4 拉普拉斯變換  8
3  《信號與系統》課件開發軟件概述  9
3.1 Authorware軟件  9
3.1.1Authorware簡介  9
3.1.2Authorware的特點  9
3.2 MATLB軟件  11
3.2.1MATLB軟件簡介  11
3.2.2MATLB軟件的特點  11
3.3 PHOTOSHOP軟件  11
4  《信號與系統》課件的設計與制作  11
4.1 《信號與系統》課件腳本設計  11
4.1.1《信號與系統》課件總要求  12
4.1.2《信號與系統》課件的范圍  12
4.1.3《信號與系統》課件的總體框架設計  12
4.1.4 界面和特效的設計  14
4.2 《信號與系統》課件制作的準備工作  14
4.2.1《信號與系統》課件素材的收集  14
4.2.2《信號與系統》課件素材的分類  15
4.2.3《信號與系統》課件素材的錄入  15
4.3 《信號與系統》課件的制作  15
4.3.1框架的制作  15
4.3.2特殊函數圖形的繪制  18
4.4《信號與系統》課件演示組件的制作  24
4.4.1制作課件演示組件的整體思路  24
4.4.2信號反轉的實現  24
4.4.3信號平移的實現  26
4.4.4例2.3-1卷積積分結果的演示  26
4.4.5脈沖寬度與頻譜關系的互動演示  26
4.5 用MATLAB實現常用信號的分析系統 26
4.5.1對于沒有安裝MATLAB軟件的主機  26
4.5.2對于安裝了MATLAB軟件的主機  29
4.6 《信號與系統》課件的后期完善  30
4.6.1對文字的處理  30
4.6.2對按鈕的處理  30
4.6.3擦除圖標的使用  30
4.7 《信號與系統》課件的打包發布  31
4.7.1發布的具體步驟  31
4.7.2發布后的測試  31
5  結論  31
謝辭  33
參考文獻  34
附錄   35

摘  要

多媒體CAI課件是一種根據教學目標設計的，表現特定的教學內容，反映一定教學策略的計算機教學程序。近年來，隨著多媒體技術的飛速發展，多媒體教學已成為教育改革進程中的熱點。伴隨著計算機軟、硬件的快速發展與更新，多媒體課件獲得了更廣闊的應用空間。課件的形式更加多樣，內容更加充實。傳統的教學模式受到了新的教育理念和現代教育技術的挑戰，運用多媒體課件輔助教學已成為一種必然的趨勢。
《信號與系統》課程是一門重要的技術基礎課程。課程中涉及了許多抽象的概念，用傳統的教學方式很難使學生對這些概念有比較直觀的認識，也就無法達到理想的教學效果。因此，筆者在教學理論的指導下，筆者設計制作了《信號與系統》課程的課件以期提高《信號與系統》課程的教學效果。
本文概括地介紹了《信號與系統》課程的重點、難點及教學現狀。分析了《信號與系統》課件制作的必要性、教育性、教學性、觀賞性、積件性和網絡性。闡明了《信號與系統》課件在推動教學改革及提高《信號與系統》課程教學質量方面的積極作用。并對制作《信號與系統》課件所使用的軟件進行了簡短的介紹。文章詳細地說明了設計制作《信號與系統》多媒體課件的具體過程，著重闡述了《信號與系統》多媒體課件的設計思想（腳本的設計）、開發過程、后期完善以及設計中采用的一些關鍵技術。對課件制作過程中遇到的困難及解決的方法也進行了說明。
關鍵詞： 信號與系統；Authorware；課件；多媒體技術；腳本 
 

Abstract

The Multi-media Courseware is a kind of computer procedure which can express the particular content of course according to the teaching target design and reflect the certain of teaching strategy. With the fast development of Multi-media Technology, the Multi-media Teaching has become a hotspot in the progress of Education Reformation in recent years. Accompany with the fast development and renewals in softwares and hardwares of the computer, the Multi-media Coursewares acquire wider room in application. As the Multi-media Courseware is becoming more and more diverse, the content of it is also becoming more and more substantial. The traditional teaching mode is facing to the unprecedented challenge form the new education principle and modern education technology. Courseware Assisted Teaching has become a necessary trend of Education Reformation.
  The Signal and System Course is an important technique foundational course. As there are many abstract concepts in this course, it is hard for the traditional teaching method to help students to have a visual view of these concepts, and can't attaint an ideal and expectant teaching effect. Under the guide of educational theories, author designed and manufactured a Signal and System Multi-media Courseware hoping to raise the effect on teaching of the Signal and System Course.
  The paper analyzed the keystone and the difficulties in the Signal and System Course and the present situation of education of the Signal and System Course broadly. It also analyzed the necessity, educative of the construction of the Signal and System Courseware, the virtues about teaching and using on internet of the courseware. Besides, it introduced the effect of Multi-media Courseware of Signal and System Course on promoting Education Reformation and improving the quality of teaching of the Signal and System Course, and described the softwares which were used in the construction of the Signal and System Multi-media Courseware shortly in this paper. The paper is mainly about the manufacture process of the Signal and System Course Multi-media Courseware, especially emphasized the design thoughts (the design of the script), the process of development of the Signal and System Courseware and the work of perfecting courseware in evening in detail. It included all key technical questions concerned and the difficulties in manufacturing the courseware and the methods of solving these problems in this paper.
Key words：Signal and System; Authorware; Courseware; Multi-media Technology; Script