摘要
频谱分析仪作为一种重要的频谱结构分析仪器,已经广泛应用于多个领域,但是现有频谱分析仪的研究存在系统完整性不强、信号类型单一的问题,本文利用MATLAB GUI工具和m脚本文件实现多类型音频信号频谱分析仪。首先,概述了频谱分析的时频域分析原理;其次,介绍了本文所提系统的基本功能与界面实现;最后,以声卡、wav文件以及信号源作为输入,利用所提系统完成了上述三种音频信号的时频域分析。
As an important instrument of spectrum structure analysis,spectrum analyzer has been widely used in many fields,but there are some problems existing in the research of spectrum analyzer,such as system integrity is not strong and signal type is single.This paper uses MATLAB GUI tool and M script file to realize multi type audio signal spectrum analyzer.First of all,the principle of time-frequency domain analysis of spectrum analysis is summarized.Secondly,the basic functions and interface realization of the system are introduced.Finally,the time-frequency domain analysis of the above three kinds of audio signals is completed with the input of sound card,wav file and signal source.
作者
郭瑞晨
GUO Ruichen(College of Information and Communication Engineering,Harbin Engineering University,Harbin,Heilong jiang Province,150001 China)
出处
《科技创新导报》
2020年第21期154-158,161,共6页
Science and Technology Innovation Herald
关键词
多类型
音频信号
频谱分析仪
时域分析
频域分析
Multiple types
Audio signal
Spectrum analyzer
Time domain analysis
Frequency domain analysis
