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Learning-weka
Weka based algorithms for clustering purposes
- 2011-05-02 22:42:40下载
- 积分：1
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example4_4
例4：在sinc(t)信号中叠加噪声，分析对应频谱
fs=100 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=2 时间窗大小
(
x=x+0.1*randn(1,N)
x=awgn(x,-10, measured )
figure
plot(t,x)
title( 时域信号图 )
xlabel( t /s )
y=fft(x,N)
figure
if mod(N,2)~=0
N=N-1
end
f=linspace(0,fs/2,N/2)
plot(f,abs(y(1:N/2))*2/N)
title( 叠加噪声的sinc(t)信号频谱 )
xlabel( f /Hz )
figure
y0=y(1:N/2)
P=y0.*conj(y0)/N
P=10*log10(P)
plot(f,P)
title( 功率谱 )
xlabel( f /Hz )
)
- 2010-05-25 20:59:03下载
- 积分：1
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Analysis-of-the-internal-wave
海洋内波压力波时间序列分析程序。用于分析海洋内波，去除高低平潮。(Ocean wave pressure wave in time series analysis program.Is applied to the analysis of ocean internal waves, get rid of the high and low tide.)
- 2013-08-25 13:22:46下载
- 积分：1
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ee
说明： 快速傅里叶变换 (FFT) 实现，给定信号x(t)=sin(2πf0t)，f0=50Hz，对x(t)以fs=200Hz进行抽样，抽样点数为N=16。编写程序实现对x(n)的快速傅里叶变换，求得相应的X(K)。(Fast Fourier Transform (FFT) to achieve a given signal x (t) = sin (2πf0t), f0 = 50Hz, for x (t) with fs = 200Hz sampling, the sampling points is N = 16. Procedures for the preparation of x (n) of the fast Fourier transform, obtained by the corresponding X (K).)
- 2013-09-06 19:44:45下载
- 积分：1
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Kalman
卡尔曼滤波算法，用matlab语言编写的，可以直接使用(Kalman filtering algorithm, matlab language, can be used directly)
- 2014-12-10 16:38:03下载
- 积分：1
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fangken
一个师兄的毕设，自己编的5种调制信号，微分方程组数值解方法。( A complete set of brothers, Own five modulation signal, Numerical solution of differential equations method.)
- 2016-12-14 22:42:51下载
- 积分：1
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QPSK_Matlab
用matlab仿真来实现QPSK通信系统(Matlab simulation of QPSK)
- 2013-03-22 12:43:23下载
- 积分：1
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bigPixel
显示梯度图像，寻找图像中最大像素值并找出边界。(show the gradient of a picture,find the edge of big pixel in a picture)
- 2010-07-28 09:38:05下载
- 积分：1
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mobileuwbcomm
The function of channel estimation is to form an estimate of the amplitude
- 2010-08-13 13:51:36下载
- 积分：1
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fortest
高斯金字塔 从网上找到代码，自己复制粘贴到，可以用(Gaussian pyramid from the Internet to find the code, copy and paste into their own, can be used)
- 2011-11-29 22:59:14下载
- 积分：1
