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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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Digital-Identification
基于matlab编写的源码 做简单的数字识别(Digital Identification Digital Identification Digital Identification Digital Identification Digital Identification Digital Identification Digital Identification Digital Identification Digital Identification Digital Identification)
- 2014-01-09 20:40:48下载
- 积分：1
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conjgrad
Conjugate Gradient Method
by Yi Cao
- 2014-02-07 02:58:49下载
- 积分：1
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param_DH
this program stimated the parameterDH of a robot
- 2010-11-16 12:46:03下载
- 积分：1
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8PSK
本程序实现对随机信号的8PSK调制，程序里面有详细注释，很容易换成想要信号的8PSK调制，欢迎下载。(This program implements the random signal 8PSK modulation, which has detailed program notes, easily replaced want 8PSK modulation signal, welcome to download.)
- 2014-12-06 12:04:44下载
- 积分：1
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Programs
efficient transmit beamspace design for search-free based doa estimation in mimo radar
- 2015-03-10 19:31:15下载
- 积分：1
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CFNN
基于补偿模糊神经网络的砂土液化势评价研究附录含有matlab程序，可以参考(CFNN on the evaluation of soil liquefaction potential)
- 2009-04-02 20:40:37下载
- 积分：1
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recket
for rocket engine calculation.(rocket calculation.)
- 2011-04-26 20:02:00下载
- 积分：1
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06637146
Abstract— In the area of image processing, several methods of
edge detection have been proposed till now like Sobel, Robert,
Prewitt, Canny, Marr-Hildreth etc. All these methods are having
their own advantages and disadvantages. In this paper a new
method has been proposed for edge detection using Cellular
Automata. Different rules have been applied for edge detection.
The outputs are better in terms of clarity and computation time.
Finally, the edge detection has been applied for detecting
cancerous cells in brain. Using Cellular Automata rules helps in
determining the exact location and size of tumor as edges
detected using Cellular Automata are fine, continuous and clear.
The results
- 2014-09-12 17:46:12下载
- 积分：1
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Grid_Connected_Fuel_Cell
基于simulink编写的燃料电池并网模型(Prepared based on simulink model of a fuel cell and network)
- 2020-11-21 10:39:37下载
- 积分：1
