“通信原理”中采样与信道容量的直观教学

奈奎斯特采样定理和有噪信道编码定理是通信原理课程中的重要内容。通常,这两个定理的教学以公式推导为主,不涉及直观理解的讲授。但定理的内容与初学者直觉不符,导致学生难以深刻理解。本文针对学生容易产生的疑惑给出了直观的解释,并设计了简单的验证实验,对教学有一定指导作用。

Intuitive Teaching of Sampling and Channel Capacity in Communication Principles

The Nyquist Sampling Theorem and Noisy Channel Coding Theorem are important contents in the communication principle course. Usually, the teaching of these two theorems is mainly based on formula derivation and does not involve intuitive understanding. However, the content of both theorems is inconsistent with the intuition of beginners, which makes it difficult for students to deeply understand them. In this paper, we give intuitive explanations to frequently asked confusion, and design simple verification experiments, which has a certain guiding effect in teaching.