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Matematika
program matematika to count volume
- 2012-06-06 11:17:17下载
- 积分：1
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FCM+Knn
用K均值算法和C模糊算法对sonar数据和iris数据进行分类。
K均值算法是一种很常用的聚类算法，其基本思想是，通过迭代寻找K个聚类的一种划分方法，使得用这K个聚类的均值来代表各类样本是所得到的的总体误差最小。
模糊C均值（FCM）算法在K均值算法的基础上，用模糊子集代替确定子集，从而得到模糊的分类结果，即分类结果的模糊化。(Sonar data and iris data are classified by means of K mean algorithm and C fuzzy algorithm.
The K mean algorithm is a very common clustering algorithm. Its basic idea is to find a partition method of K clustering by iteration, so that the average error of the mean of the K clustering is minimized.
The fuzzy C mean (FCM) algorithm is based on the K mean algorithm. The fuzzy subset is replaced by the fuzzy subset, thus the fuzzy classification result is obtained, that is, the classification result is fuzzed.)
- 2020-11-06 17:59:50下载
- 积分：1
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misosimu
misosimu simulates the ser for different miso systemms 2*1,3*1 4*1 and 8*1
- 2009-02-26 01:52:49下载
- 积分：1
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sdr-core
一种软件无线电核心算法的演示,包含了傅里叶变换,降噪滤波,常用调试解调等(Core algorithm of a software radio demo, contains the Fourier transform, noise reduction filtering, demodulation and other common debugging)
- 2011-01-17 16:04:23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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nothing
nothing is impossible
- 2013-11-04 09:32:38下载
- 积分：1
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circ_array
MATLAB Simulations for Radar Systems DesignMATLAB_Codecirc_array.rar(MATLAB Simulations for Radar Systems Design MATLAB_Code circ_array.rar)
- 2009-10-26 21:46:52下载
- 积分：1
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CANNY
CANNY EDGE DETECT SOURSE CODE
- 2010-11-29 22:29:07下载
- 积分：1
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matlab
说明： 对信道的仿真，采用QPSK调制，分别在瑞利和高斯信道条件下，也包括CRC较验(Simulation of the channel, using QPSK modulation, respectively, Rayleigh and AWGN channel conditions, but also more experience CRC)
- 2011-02-28 16:27:50下载
- 积分：1
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Wavelet
数字图像 的小波算法及 快速小波变换(Digital image wavelet algorithm and fast wavelet transform)
- 2010-05-12 21:02:52下载
- 积分：1
