数字信号处理课程的Matlab教学研究

Matlab Teaching Study in "Digital Signal Processing" Course

数字信号处理是一门理论性很强的课程,针对教学过程中学生对知识点理解困难、学习枯燥无味等问题,将Matlab软件引入课堂教学中,以FIR滤波器的窗函数设计法为教学实例,将相关知识点用图形化演示直观地表示出来。在实验教学中,以Matlab软件为平台,分别按照窗函数设计法的原理编程设计滤波器,采用Matlab信号处理工具箱提供的fir1函数设计滤波器,以及调用滤波器设计和分析工具箱提供的图形用户界面设计滤波器。教学效果表明,将Matlab引入到教学过程中,不仅可以使学生直观地领会和深入地理解数字信号处理的理论知识和分析方法,还可以提高学生的实际动手能力以及分析解决问题的能力,有效提高了教学质量。

Digital Signal Processing is a highly theoretical course, difficult to understand the knowledge points for the pro- cess of teaching secondary school students learning boring and other issues, the Matlab software into classroom teaching, FIR filter window function design method for teaching examplesknowledge point that the graphical presentation. In the ex- perimental teaching to the Matlab software as a platform to design filter in accordance with the principles of programming of the window function design method using the Matlab Signal Processing Toolbox provides firl function filter, as well as call filter design and analysis toolbox provides graphics user interface design filter. Teaching effectiveness of Matlab into the teaching process, not only allows students to intuitively understand and in-depth understanding of the theoretical knowledge of digital signal processing and analysis methods, can also improve students＇ practical ability and the ability to analyze and solve problems, improve the quality of teaching.