信号与系统是电子信息类各专业非常重要的一门专业基础课,课程的特点是内容多、理论性非常强、概念较为抽象。学生普遍认为内容难以把握,概念难以理解,学习起来感觉吃力,特别体现在对几个重要知识点的理解,如冲激函数、频谱密度函数等。针对这一实际情况,为了提高课堂的教学质量和效果,本文作者提出了对本课程授课的一些意见,并结合教学实践,针对冲激函数与频谱密度函数这两个重要的概念,提出了实用的教学实施方法。 Signals and systems are very important basic courses in various fields of electronic information. The courses are characterized by many contents, strong theoretical features and relatively abstract concepts. Students generally think that the content is difficult to grasp, the concept is difficult to understand, feel difficult to learn, especially in the understanding of several important points of knowledge, such as the impulse function, spectral density function. In view of this fact, in order to improve the teaching quality and effect in the classroom, the author put forward some opinions on teaching this course and combined with the teaching practice, in view of the two important concepts of impulse function and spectral density function, put forward practical Teaching methods of implementation.