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DISANZHANG

于 2013-11-29 发布 文件大小:12KB
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代码说明:

  本光盘为《详解MATLAB快速入门与应用》一书的配套光盘,包括以下内容: 1.“sample”文件夹:提供了本书各章范例的源程序。(The CD is " Getting Started with MATLAB Detailed application," a book supporting the CD, including the following:. 1 " sample" folder: each chapter provides examples of the book source.)

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  • jiachuang
    因为傅立叶变换对应的是无限信号,信号经过分帧后变成有限信号,分帧的信号再进行傅立叶变换后,高频部分将有 泄露 ,所以要加窗. 窗函数的拼谱都是在某高频部分截止,所以每帧信号加窗后的傅立叶变化,频谱基本 泄露 (Because Fourier transform corresponding is infinite signals, signals after framing become limited, framing signal again after Fourier transform, the high frequency part will have leaked , so to add window. Window function spell spectrum are in a high frequency part of the globe, so each frame and window after Fourier transform, signal spectrum basic leak )
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    快速傅里叶变换程序,供大家参考,matlab下运行,可以看波形(Fast Fourier transform procedures for your reference, matlab running, you can see the waveform)
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