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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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fusehand
手形识别中采用肤色分割的算法，进行手形区域的提取，输出手形区域。(Hand-shape recognition algorithm using color segmentation, hand-shaped region extraction, hand-shaped area of the output)
- 2010-05-23 16:01:14下载
- 积分：1
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AC_Non_Inv_Amp
This is a matlab file which simulates ac non inv amp
- 2012-11-07 23:37:07下载
- 积分：1
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Power_Method
利用幂法求矩阵特征值，属于数值解法的一种(Using power method to find eigenvalues of matrices, which is a kind of numerical solution.)
- 2021-03-09 22:59:27下载
- 积分：1
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BPexample
BP神经网络的设计实例,文中例子均通过测试，可直接运行(BP neural network design example, the text examples are tested, can be directly run)
- 2008-05-30 16:11:08下载
- 积分：1
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OMP1
二维图像的omp算法重构，使用matlab 编程(The 2-d image reconstruction omp algorithm using matlab programming)
- 2011-05-14 08:41:02下载
- 积分：1
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Based-on-clustering-algorithm-a
基于聚类算法和模式识别的人脸检测程序原代码(Based on clustering algorithm and pattern recognition face detection procedures the original code)
- 2011-05-16 20:25:18下载
- 积分：1
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danchunxing
单纯形法matlab程序，其中含有说明文档(Simplex method matlab program)
- 2011-05-30 10:10:04下载
- 积分：1
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TRI
教你如何绘制三角形，带源代码！！！教你如何绘制三角形，带源代码！！！！(Teach you how to draw Triangle)
- 2010-01-05 16:44:28下载
- 积分：1
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essential-engineering-mathematics_engineering108
Mathematics concepts for electrical engineers
- 2013-10-25 16:06:32下载
- 积分：1
