Simple-FFT-analyzer

所属分类:matlab编程
开发工具:matlab
文件大小:606KB
下载次数:59
上传日期:2014-04-22 16:09:52
上 传 者111122222
说明:  设计一个 20Hz~20KHz 范围内的频谱分析仪(用计算机声卡); 要求: 1) 用计算机声卡实时采集语音信号,并实时显示时域波形信号; 2) 可以从计算机中读取语音信号文件,并能够实时显示时域波形信号; 3) 实现对信号进行幅度上的放大、缩小显示,存储等; 4) 实时显示信号的频谱,信号的频谱分辨率可以进行设置; 5) 采用常见的低通、高通、带通、带阻(50Hz)滤波器对信号进行滤波,滤波器阶数可调,带宽可调,观察信号频谱的变化; 6) 对信号频谱进行非实时高分辨率分析; 7) 编制 GUI 用户界面,能够在用户界面上实现上述所有功能。 8) 其它功能可参考商用 FFT 分析仪添加;
(Design a spectrum analyzer 20Hz ~ 20KHz range (with a computer sound card) Requirements: 1) with the computer s sound card real time voice signal acquisition and real-time display time-domain waveform signal 2) You can read the speech signal files from your computer, and the time-domain waveform signal can be displayed in real time 3) realize the magnitude of the signal amplification on the narrow display, storage, etc. 4) Real-time display spectral resolution signal spectrum, the signal can be set 5) using a common low pass, high pass, band pass, band stop (50Hz) signal filtering filters, filter order adjustable, adjustable bandwidth, observed changes in the signal spectrum 6) for non-real-time high-resolution signal spectrum analysis 7) the preparation of GUI user interface, to achieve all of the above functions in the user interface. 8) Other functions can be added with reference to commercial FFT analyzers )

文件列表:
Simple FFT analyzer.doc (919552, 2014-04-22)

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