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example4_6
:滤波
fs=400 采样频率,必须大于两倍基带信号最高频率
ts=1/fs 采样时间间隔
T=5 时间窗大小
t=0:ts:T (hf1=zeros(1,N)
hf1(f<=B1&f>=-B1)=1
y1=hf1.*fftshift(y)
figure
subplot(211)
plot(f,abs(fftshift(y))/N,f,hf1, r-- )
axis([-fs/2,fs/2,0,1.2])
title( 原信号频谱 )
xlabel( f /Hz )
subplot(212)
plot(f,abs(y1)/N)
title( 低通滤波,截止频率90Hz )
xlabel( f /Hz ))
- 2010-05-25 20:58:05下载
- 积分:1
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CursDotNetSharp
Curs pentru invatarea DotNetSharp
- 2014-08-23 20:37:52下载
- 积分:1
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KNN-matlab
k近邻的两种改进算法,采用matlab实现,使得算法效率有了较大提高。(two methods for knn,both of them are run in matlat.)
- 2013-03-10 15:39:35下载
- 积分:1
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StructEquation2
结构方程中拟合函数的迭代算法,不同于PLS算法。而是采用BFGS拟牛顿法求解,得出的结果与LISREL软件结果一致.
注:此算法只是针对本人一个模型使用,不同模型要做改动(This program for solving the fit function of Strual Equation Modeling ,BFGS is using for minimize the fit function with the initial point estimated by PLS)
- 2009-05-02 12:53:56下载
- 积分:1
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lsb_all
用matlab实现对图片的lsb算法的嵌入和提取,嵌入和提取方便简便,易懂。效率高(Using matlab to achieve the picture of the lsb embedding and extraction algorithms, embedding and extraction is simple convenient, easy to understand. High efficiency)
- 2011-08-01 10:05:41下载
- 积分:1
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homework
一个基于matlab的有限元分析程序,用三角形单元对二位有限元问题进行分析(A matlab based on the finite element analysis program, two finite element analysis using triangular elements)
- 2012-11-10 15:16:39下载
- 积分:1
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ACSTSP
Ant colony optimization for TSP
- 2010-11-25 14:53:53下载
- 积分:1
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shujufenxi
说明: 一个利用MATLAB编程来进行数据分析的经典程序,希望能对大家有帮助。(A program using MATLAB for data analysis of the classic program, hoping to be helpful.)
- 2010-04-06 08:52:32下载
- 积分:1
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VQ
说明: LBG算法设计矢量量化码书的函数,需要给出训练序列x,矢量维数K和码书长度CN,返回根据训练序列给出的最小误差码书。(LBG algorithm for vector quantization codebook design function , you need to give training sequence x, vector dimension K and codebook length CN, return according to the minimum error given training sequence codebook .
)
- 2013-07-27 10:29:56下载
- 积分:1
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MIMO_OFDM_main
说明: MIMO-OFDM系统仿真程序,matlab文件(MIMO-OFDM system simulation program, matlab file)
- 2008-10-03 17:26:36下载
- 积分:1