基于Simulink的多径失真之卷积分析消除法及其虚拟仿真教学探索  

Study of Teaching on the Distortion Elimination for the Multipath-effect Based on the Convolution Analysis:its Virtual Simulation by Employing the Simulink

作　　者：杨宗长[1] YANG Zongchang(School of Information and Electrical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)

机构地区：[1]湖南科技大学信息与电气工程学院

出　　处：《当代教育理论与实践》2018年第3期63-68,共6页Theory and Practice of Contemporary Education

基　　金：湖南省科技厅计划项目(2013GK3090)

摘　　要：作为一种积分变换的数学方法,卷积是信号与系统理论的重要内容。伴随信息技术的发展,计算机仿真在科学研究以及教育教学中得到广泛应用。针对卷积分析法及其应用,以无线通信系统中多径传输失真问题为例,设计了其基于卷积分析的失真消除方法及其Simulink环境的虚拟仿真教学。在Simulink可视化仿真环境中,以直观框图的形式构建其仿真模型并进行实验验证,增强了教学的直观性。仿真实验结果以及教学实践反馈表明:通过设计"逆系统",回波干扰影响可以被明显削弱,多径失真得到有效校正,其建模设计与仿真过程直观明了。该教学设计与内容在近年来的"信号与系统"课程教学实践中反馈良好。The computer-based simulation has been widely applied in a varied range of fields. Based on the convolution analysis,inverse systems in a gradual-amendment approach are introduced to eliminate the multi-path effect in this paper. Besides,its Matlab-Simulink-based implementation and simulation can be achieved in one convenient and vivid way. The Simulink-based simulations show workability of the presented method. The proposed method obtains good feedback results in its teaching application for a basic course of＂signals and systems＂for undergraduate students.

关 键 词：计算机化教学 虚拟仿真 卷积分析 逆系统 SIMULINK 

分 类 号：G434[文化科学—教育学]