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two_ray_model
Modelo de dos rayos de Andrea Goldsmith (figura 2.5, según expresión
2.12)
f = 0.9 frecuencia en GHz
landa = 0.3/f en m
R = -1 coeficiente de reflexión en tierra
ht = 10 altura del transmisor en m
hr = 2 altura del receptor en m
Gt = 1
Gr = 1
Pt = 1
d=10:.1:100000
phase_diff = 4*pi*ht*hr./(landa*d) aproximación
Pr = Pt*((landa/(4*pi))^2)*((abs((sqrt(Gt)./d) + (R*sqrt(Gr).*(exp(-sqrt(-1)*phase_diff)))./d)).^2)
Pr = Pt*((landa/(4*pi))^2)*(1./d).*((abs((sqrt(Gt)) + (R*sqrt(Gr).*(exp(-sqrt(-1)*phase_diff))))).^2)
figure(1), clf,
plot((d),10*log10(Pr/max(abs(Pr))))
grid
xlabel( log_1_0(d) )
ylabel( Potencia recibida (dBm) )
- 2010-02-08 06:31:54下载
- 积分：1
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卡尔曼滤波的GUI编程 Kalman-filter_GUI
卡尔曼滤波的GUI编程Kalman filter GUI programming
(Kalman filter GUI programming
)
- 2011-12-21 10:57:57下载
- 积分：1
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libsvm
最新版本libsvm，快点珍藏吧，很有用啊(The latest version of libsvm, quick collection of it, very useful )
- 2010-12-23 11:40:54下载
- 积分：1
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jiyuquyudequyutuxingshengzhangfafa
重要的模拟程序，模拟精度很高，值得大家好好参考，好好学习一下(Important simulation, the simulation accuracy is high, is worth a good reference to learn about)
- 2011-11-21 21:07:58下载
- 积分：1
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g56
Smal program for NMEA observesion
- 2011-05-22 17:38:33下载
- 积分：1
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wind-prediction
风速预测源代码，通过已有数据预测将来1小时的风速(wind prediction)
- 2011-07-09 11:04:51下载
- 积分：1
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libsvm-3.18
matlab的libsvm工具箱，内附详细教程。只要复制到toolbox工具箱下，就可以使用。(The libsvm matlab toolbox, containing detailed tutorial. Just copy the toolbox toolbox under, it can be used.)
- 2014-11-06 11:01:37下载
- 积分：1
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FuzzyControl
This is material which include Fuzzycontrol theory and algorithms.
- 2014-01-27 21:01:13下载
- 积分：1
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xifenlunwen
2008年11月csai系分辅导论文范文81篇,复习系统分析师下午二论文的参考资料(November 2008 csai Department of Pham Van 81 points counseling papers, review systems analyst at the second paper of reference)
- 2010-07-12 22:49:22下载
- 积分：1
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FIRwavlab_bart1
matlab开发的FIR滤波器，附音频，效果良好(matlab developed FIR filter, with audio, the effect of good)
- 2008-05-05 21:28:00下载
- 积分：1
