摘 要:信号的运算和分解是“信号与系统”课程中的一个重要知识点。在课堂教学中,结合章节的内容要点,设计多个算例,采用MATLAB 软件进行编程仿真,将抽象的理论知识与直观的图形演示相结合。由于解题思路和编程逻辑并不唯一,促使学员主动寻找一题多解、举一反三的答案,开阔了学习思路、激发了创新热情,为“信号与系统”课程教学方式改革实践提供了有益参考。
关键词:信号与系统;信号运算和分解;仿真教学
中图分类号:G642.3 文献标识码:A 文章编号:2096-4706(2020)09-0071-05
Research on Classroom Teaching Design of “Signal and System”in Military Academy
——Taking Simulation Teaching of Signal Operation and Decomposition as an Example
HE Yin,XU Chi,HAN Dong,LI Li,WANG Yongchao
(PLA Dalian Naval Academy,Dalian 116018,China)
Abstract:The operation and decomposition of signals are an important knowledge point in the course of “Signal and System”. In classroom teaching,combining the main points of the chapter,designing multiple calculation examples,using MATLAB software for programming simulation,combining abstract theoretical knowledge with intuitive graphical presentation. Because the problem-solving ideas and programming logic are not unique,students are motivated to actively find answers to multiple questions and inferences,which broadens their learning ideas and stimulates enthusiasm for innovation. It provides a useful reference for the reform and practice of the“ Signal and System” teaching method.
Keywords:signal and system;signal operation and decomposition;simulation teaching
基金项目:国家自然科学基金项目(11374001)
参考文献:
[1] 郑君里,应启珩,杨为理. 信号与系统:第3 版 [M]. 北京:高等教育出版社,2011.
[2] 王宏伟,张文凯,齐臣杰,等.MATLAB 在信号分解与合成实验教学中的应用 [J]. 科技创新导报,2013(22):165-166.
[3] 谢自梅,段新涛,岳冬利.《信号与系统》中信号运算的教学探讨 [J]. 教育教学论坛,2015(31):193-194.
[4] 陈后金,胡健,薛健. 信号与系统 [M]. 北京:高等教育出版社,2007.
[5] 吴大正. 信号与线性系统分析:第4 版 [M]. 北京:高等教育出版社,2005.
作者简介:贺寅(1986.08—),男,汉族,甘肃庄浪人,助教,硕士,研究方向:军事通信。