文件名称:FFT
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1.x=0.5*sin(2*pi*15*t)+2*sin(2*pi*40*t)。采样频率fs=100Hz,分别绘制N=128、1024点幅频图。
2.x=0.5*sin(2*pi*15*t)+2*sin(2*pi*40*t),fs=100Hz,绘制:
(1)数据个数N=32,FFT所用的采样点数NFFT=32;
(2)N=32,NFFT=128;
(3)N=136,NFFT=128;
(4)N=136,NFFT=512。-1. X = 0.5* sin (2* PI* 15* t)+ 2* sin (2* PI* 40* t).Sampling frequency fs = 100 hz, respectively to draw N = 128, 1024 point amplitude-frequency figure.
2. X = 0.5* sin (2* PI* 15* t)+ 2* sin (2* PI* 40* t), the fs = 100 hz, drawing:
(1) N = 32, NFFT = 32
(2) N = 32, NFFT = 128
(3) N = 136, NFFT = 128
(4) N = 136, NFFT = 512.
2.x=0.5*sin(2*pi*15*t)+2*sin(2*pi*40*t),fs=100Hz,绘制:
(1)数据个数N=32,FFT所用的采样点数NFFT=32;
(2)N=32,NFFT=128;
(3)N=136,NFFT=128;
(4)N=136,NFFT=512。-1. X = 0.5* sin (2* PI* 15* t)+ 2* sin (2* PI* 40* t).Sampling frequency fs = 100 hz, respectively to draw N = 128, 1024 point amplitude-frequency figure.
2. X = 0.5* sin (2* PI* 15* t)+ 2* sin (2* PI* 40* t), the fs = 100 hz, drawing:
(1) N = 32, NFFT = 32
(2) N = 32, NFFT = 128
(3) N = 136, NFFT = 128
(4) N = 136, NFFT = 512.
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下载文件列表
test1.m
test2.m