数字信号处理教学中的数学概念物理化解释——以卷积为例
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摘要
针对数字信号处理理论性强、公式繁杂以及用专业例证解释存在学习时间差等问题,提出了该专业基础课程的教学改革方法.以卷积概念为例,通过对其涉及的单位抽样响应、线性和移不变概念的物理化阐述,给出了卷积物理化本质的教学解释,加深了学生对卷积概念的理解,提升了数学信号处理专业基础课的教学效果.
In order to solve the problems of strong theory,complex formulas and time delay with professional examples explaining in digital signal processing,puts forward the teaching reform method of this professional basic course.Taking the concept of convolution as an example,the teaching explanation of the essence of convolution physicalization is given through the physicalization of the unit sampling response,linearity and shift invariance, which deepens the students′ understanding of convolution concept and improves the teaching effect of digital signal processing.
In order to solve the problems of strong theory,complex formulas and time delay with professional examples explaining in digital signal processing,puts forward the teaching reform method of this professional basic course.Taking the concept of convolution as an example,the teaching explanation of the essence of convolution physicalization is given through the physicalization of the unit sampling response,linearity and shift invariance, which deepens the students′ understanding of convolution concept and improves the teaching effect of digital signal processing.
引文
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[2]钱莉.关于《数字信号处理》的教学研究[J].教育现代化,2018,5(7):238-239
[3]李继猛,谢平,江国乾,等.基于目标驱动的数字信号处理课程模块化教学改革[J].教学研究,2016,39(4):61-65
[4]李洪均,李蕴华,陈俊杰,等.数字信号处理实践型教学改革研究[J].中国教育技术装备,2017(24):156-158
[5]杨秋菊,马晓.数字信号处理课程教学探索[J].大学教育,2016(6):163,175
[6]吴兰.面向测控专业的信号处理类课程的教学改革与实践[J].教育教学论坛,2017(11):85-86
[7]吴瑛,张莉,陈迎春.“数字信号处理”教学改革的几点体会[J].电气电子教学学报,2010,32(6):14-16
[8]林永照,张群,樊昌周.“数字信号处理”课程抛锚式教学方法探讨[J].工业和信息化教育,2017(5):38-41
[9]管致中,夏恭恪,孟桥,等.信号与线性系统(上册)[M].6版.北京:高等教育出版社,2015:50-64
[10]程佩青.数字信号处理教程[M].4版.北京:清华大学出版社,2015:29
[11]曹志刚.通信原理与应用·基础理论部分[M].北京:高等教育出版社,2015:12