基于声波的2ASK通信系统实验设计

Experimental Design of 2ASK Communication System by Acoustic Signal

通信原理课程在电子信息工程专业作为专业基础课,占有很重要的地位。合理设计一些有趣的通信实验,不仅可以大大提高学生的学习兴趣,而且可以加深学生对基础通信知识的理解。在数字键控体制中,了解2ASK的调制与解调原理是关键。运用计算机,声卡、扬声器、麦克风等简单设备,设计基于声波的2ASK通信系统实验平台,并详细介绍实验设计方法和MATLAB仿真。该实验既可以满足教学要求,又可用于学生的简单的应用开发。

In electronic information engineering specialty,communication principle as a professional basic course occupies very important position.Reasonable design of some interesting communication experiments,not only can greatly improve the student’s interest in learning,but also deepen student’s understanding of basic communication knowledge.In digital communication systems,the understanding of the principle of 2ASK modulation and demodulation is the key.In this paper,acoustic 2ASK communication system is designed through the computer,sound card,speakers,microphones and other simple equipment.Also,the design of the experimental method and MATLAB simulation are introduced.The experiment not only can satisfy the requirement of teaching,but also can be used in simple exploit.Key words 2ASK