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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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the-iamge-matting-with-new-ways
采用一种新的方法，对图像进行matting，并取得良好的效果(the image matting with good approach)
- 2013-10-02 21:23:32下载
- 积分：1
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PMSM_Controler
PMSM control By PWM signal
- 2013-10-21 03:19:09下载
- 积分：1
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cheng-xu
针对常规PID控制不具有自适应能力，对于时变、非线性系统控制效果不佳。提出了将模糊技术与PID控制相结合的控制方式，设计模糊控制器。(Conventional PID control with adaptive capabilities, time-varying, nonlinear system control ineffective. Fuzzy and PID control combined control mode fuzzy controller design.)
- 2013-05-11 00:44:09下载
- 积分：1
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HEV_Model
利用matlab建立了一个混合动力电动汽车模型，其中包括电子、动力传动系统、电气系统的物理模型仿真模块组，可配置为系统级测试或电能质量分析。压缩包内含2011-2016各版本，具体可阅读自述文件。(Using matlab built a hybrid electric vehicle models, including the physical model simulation module group in electronics, powertrain, electrical system can be configured for system level testing or power quality analysis. 2011-2016 archive contains versions, specifically, read the README file)
- 2020-06-29 06:20:02下载
- 积分：1
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wfu_pickatlas
处理fmri图像的软件工具，具有分脑区显示激活点、据要求实现感兴趣区等诸多功能，详细参见使用说明(Fmri image processing software tools, with sub-brain regions showed activation point, it was required to achieve ROI, and many other features, see the detailed instructions)
- 2010-08-21 16:26:55下载
- 积分：1
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massey_berlekamp_M3
说明： 主要用于制作编译码的具体的中间环节完成一些通信平台的搭建(Mainly for the production of concrete in the middle part of decoding the completion of some communications platform structures)
- 2011-03-22 14:44:33下载
- 积分：1
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MUSIC
说明： 经典MUSIC算法仿真，并有信号相干情况下，采用前向以及前后向平滑技术估计波达方向。(Classical MUSIC algorithm simulation, and a signal coherent case, the forward and after smoothing technique to estimate DOA.)
- 2011-04-15 09:35:38下载
- 积分：1
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优化SVM算法 Firefly
以优化SVM算法的参数c和g为例，对FA（萤火虫算法）MATLAB源码进行了逐行中文注解。是很好的学习材料。(
SVM algorithm to optimize the parameters c and g as an example, FA (firefly algorithm) MATLAB source was progressive Chinese annotations. It is a good learning materials.)
- 2016-09-09 17:01:31下载
- 积分：1
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SVM-KM
支持向量机的工具箱,功能比较齐全,安装在MATLAB的TOOBOX目录里面即可(Support Vector Machine Toolbox, function relatively complete, the installation directory in the MATLAB-TOOBOX inside can)
- 2007-11-16 15:59:05下载
- 积分：1
