数字信号处理案例教学法研究与实践

Research and practice of case teaching method for digital signal processing

在教学中采用了案例式教学法,精心设计与教学内容结合紧密的实验案例,将有趣图像引入课堂,根据课程内容将案例分解为3个子任务:图像信号的频谱分析、图像信号的滤波以及图像信号的合成。每个子任务和理论讲解同步进行,理论课上引入案例,实验课上进行设计实践,开放实验室内课外兴趣小组进行拓展创新实践。教学实践证明,案例教学法能够调动学生学习的主动性、增强学生学习的兴趣。

The case teaching method is adopted in teaching.The experimental case which is closely combined with teaching content is carefully designed.The interesting image is introduced into the classroom,and the case is decomposed into three sub-tasks according to the content of the course,i.e.,the spectral analysis of image signal,filtering of image signal and synthesis of image signal.Each sub-task is synchronized with theoretical explanation.The case is introduced into the theoretical class,the design practice is carried out in the experimental class,and extracurricular interest groups carry out the expended innovative practice in the open laboratory.The teaching practice has proved that the case teaching method can arouse students’ learning initiative and enhance their interest in learning.