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采用matlab进行傅里叶变换,将图像变换成频谱形式的图像。-Using MATLAB Fourier transform, the image is converted into a spectrum in the form of image.
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1、用Matlab产生正弦波,矩形波,并显示各自的时域波形图;
2、进行FFT变换,显示各自频谱图,其中采样率、频率、数据长度自选,要求注明;
3、绘制三种信号的均方根图谱;
4、用IFFT回复信号,并显示恢复的正弦信号时域波形图。
-1, using Matlab to generate sine wave, square wave, and shows the respective time-domain waveform
2, FFT transform, disp
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数据信号处理相关程序,如各类傅里叶变化、频谱分析等等,简单易懂。(Data signal processing procedures, such as Fourier transform, spectrum analysis and so on, are simple and easy to understand.)
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