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fmsys
simulation modulate & demod FM
- 2011-05-10 12:41:45下载
- 积分:1
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newtonraphson
flownewton le thanh binh
- 2012-04-24 02:28:05下载
- 积分:1
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MATLAB7.8imageprocess
matlab图像处理宝典 图像处理入门手册(matlab-image processing)
- 2015-04-21 21:25:23下载
- 积分:1
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bbukf
unscented kalman filter
- 2009-04-23 01:39:17下载
- 积分:1
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xiaoboshenjing
小波神经网络的源程序,稍加扩展可用于多样本数的的训练(Wavelet neural network of the source, this little extension can be used for various numbers of training)
- 2010-05-10 17:45:28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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main
预编码主函数。在通信系统中知道CSI情况下,预编码。(English Description)
- 2013-05-01 22:02:23下载
- 积分:1
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nozzle_Ok
In mathematics, the method of characteristics is a technique for solving partial differential equations. Typically, it applies to first-order equations, although more generally the method of characteristics is valid for any hyperbolic partial differential equation. The method is to reduce a partial differential equation to a family of ordinary differential equations along which the solution can be integrated from some initial data given on a suitable hypersurface.
This software is an example of implementation of characteristics method in a definition of convergent-divergent nozzle.
- 2012-02-11 06:41:58下载
- 积分:1
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8PAM
通信系统中的信号调制与解调技术,对信号采用8PAM的脉冲幅度调制进行仿真分析(Communication system signal modulation and demodulation techniques, using a pulse width modulated signal 8PAM of simulation analysis)
- 2014-12-25 10:43:27下载
- 积分:1
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lao-xt65
小波包分析提取振动信号中的特征频率,利用自然梯度算法,有详细的注释。( Wavelet packet analysis to extract vibration signal characteristic frequency, Use of natural gradient algorithm, There are detailed notes.)
- 2017-03-12 19:09:44下载
- 积分:1