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DODPCA
说明: 两个方向的二维主成分分析matlab算法(Two directions of two-dimensional principal component analysis algorithm matlab)
- 2009-08-20 11:16:48下载
- 积分:1
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QI045_Matlab_X_L
扩频通信,从电磁波利用来看,与一般现有的常规通信方式完全不同。扩频通信利用伪随机编码把信息数据(窄带信号)的频谱进行扩展,形成宽带的低功率谱密度信号发射,使用不同的伪随机序列编码,不同通信用户可在同一频段、同一时间工作,互不影响或干扰极小地进行通信。(Spectrum, from the electromagnetic waves used term, and the general existing conventional means of communication is entirely different. Spread spectrum communication using pseudo-random code to the information data (narrowband signal) to extend the spectrum, the formation of low-power spectral density broadband signal transmission, using different pseudo-random sequence of coding, different communication users at the same frequency band, at the same time work, mutual does not affect or interfere with a very small way to communicate.)
- 2010-05-08 18:51:26下载
- 积分:1
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Computer-aided-design--
计算机辅助设计与仿真技术的概述,文件格式为ppt格式。(Computer-aided design and simulation technologies overview ppt file format format.)
- 2011-05-14 10:26:11下载
- 积分:1
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simple-multiobj
Simple multiobjective optimization
- 2013-12-17 00:19:35下载
- 积分:1
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example4_3
例3:分析占空比为ta的矩形脉冲频谱
T=1 时间窗大小
ta=0.5 占空比
N=256
t=linspace(-T,T,N)
ts=2*T/N
fs=1/ts
(x=zeros(1,N)
x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1)
y=fft(x,N)
figure
plot(t,x)
title([ 时域信号图 占空比为 ,num2str(ta)])
axis([-T T-0.2 1.2])
xlabel( t /s )
figure
subplot(211)
f=linspace(-fs/2,fs/2,N)
plot(f,abs(fftshift(y))/N)
title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ])
xlabel( f /Hz )
)
- 2010-05-25 20:59:59下载
- 积分:1
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ica_f2
matlab 程序 ica 独立成分分析主函数(其中没有编制子函数代码)(The main function matlab ica independent component analysis (not one of them to compile a function code)
)
- 2013-08-11 11:59:59下载
- 积分:1
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lvbo
实现数据的高通、带阻、低通的数字滤波。
非常适合初学者使用(Data of high-pass, band stop, low-pass digital filtering. Very suitable for beginners to use)
- 2007-11-11 20:48:06下载
- 积分:1
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digital+image+processing
digital image processing
- 2009-04-27 20:56:04下载
- 积分:1
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dianchangxian
用matlab模拟电场线绘图,四个单位点电荷,电荷性质可改变。(Drawing electric field line simulation using matlab)
- 2010-01-07 08:24:52下载
- 积分:1
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jidai
说明: 最佳基带系统的源程序
matlab程序示例(the best base-band source of the examples Matlab)
- 2006-03-06 22:43:38下载
- 积分:1