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【数字信号】基于matlab模拟窗函数频谱细化【含Matlab源码 1906期】
2022-06-23 22:20:00 【海神之光】
一、获取代码方式
获取代码方式1:
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二、部分源代码
clear;
close all;
clc;
N=50;
w=boxcar(N);
W=fft(w,256);
figure(1)
subplot(2,1,1);
stem([0:N-1],w);
subplot(2,1,2);
plot([-128:127],abs(fftshift(W)))
N=input('窗函数长度=');
L=512;
f1=100;f2=120;fs=600;
ws=2*pi*fs;
t=(0:N-1)*(1/fs);
x=cos(2*pi*f1*t)+cos(2*pi*f2*t);
三、运行结果





四、matlab版本及参考文献
1 matlab版本
2014a
2 参考文献
[1] 沈再阳.精通MATLAB信号处理[M].清华大学出版社,2015.
[2]高宝建,彭进业,王琳,潘建寿.信号与系统——使用MATLAB分析与实现[M].清华大学出版社,2020.
[3]王文光,魏少明,任欣.信号处理与系统分析的MATLAB实现[M].电子工业出版社,2018.
3 备注
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