课设任务驱动下数字信号处理课程教学方法研究

郑雁翎

摘  要 数字信号处理课程的特点是理论性强、概念抽象，工科学生在学习过程中很难把课程内容与工程实践问题相联系，课程对学生的数学基础要求高，前驱课程理论知识要求扎实。因此，学生普遍对该课程的学习积极性、主动性不够高。为了既能让学生主动学习、自主探究，又能够满足新工科背景下人才培养的要求，提出课设任务驱动下的课程教学方法设计，将课设任务引入整个教学过程中，让学生在学习知识点的时候，如同在研究一个个小的课题。从近两年教学实践来看，课设任务驱动教学能够有效提高教学效率，激发学生学习兴趣。该方法同样适用于工科其他专业课的教学。

关键词 数字信号处理；课程设计；教学方法；任务驱动；IIR数字滤波器

中图分类号：G642.3    文献标识码：B

文章编号：1671-489X（2021）14-0089-03

Abstract The course of Digital Signal Processing is characterized by strong theory and abstract concept. It is difficult for engineering stu-dents to connect the course content with engineering practice pro-blems in the learning process. The course has high requirements for students mathematical foundation and solid theoretical knowledge for the precursor course. Students are neither active nor active in lear-ning. In this paper， it is proposed that a curriculum teaching method driven by the curriculum design task in order to enable students to study actively and explore independently， and meet the requirements of talent training under the background of new engineering. The curri-culum design task is introduced into the whole teaching process， so that students learn knowledge points as if they are studying a small topic. From the teaching practice in the past two years， the teaching method by curriculum design task driven can effectively improve teaching efficiency and stimulate students interest in learning. This method is also suitable for teaching other engineering courses.

Key words digital signal processing; curriculum design; teaching method; task driven; IIR digital filter

0  引言

课设任务驱动下的教学方法，即根据教学内容将课程设计任务分解成子课题，进行理论与实践紧密结合的教学：理论课上引入课题任务，进行引导式和讲授式教学；实验课上进行课题的设计与实施，采用启发研讨式教学方式；课外组织创新拓展实践，积极采用“互联网+”的自主式和协作式学习模式。针对数字信号处理课程，在教学过程中引入课设题目，理论课中，提出与课程内容相关的课程设计题目，围绕设计题目所用知识点展开讲解，激发学生兴趣，使学生愿意主动探究；实验课中，针对课设任务中的某个指标要求进行实验设计、仿真并得出结论；……