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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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CPPPPT
面向对象程序设计的优点表现在实现对现实世界客体的自然描述、可控制程序的复杂性、可增强程序的模块性、可提高程序的重用性和可改善程序的可维护性等方面。(The advantages of object-oriented program design performance in achieving a natural description of real world objects, and can control the complexity of the program, can enhance the module of the program, program would improve the reusability and maintainability can be improved, and so on.
)
- 2014-08-22 12:36:43下载
- 积分：1
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cc
说明： hslogic算法仿真,基于MATLAB/SIMULINK的LPC特征提取仿真与分析(Hslogic algorithm simulation, LPC feature extraction simulation and analysis based on MATLAB / Simulink)
- 2020-02-04 19:01:26下载
- 积分：1
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QPSK
Simulink model for QBSK
- 2011-07-05 12:22:03下载
- 积分：1
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root_music
主要介绍求根music算法，对于初学者可以多看一下。(Mainly introduces roots music algorithm for for beginners can read it.)
- 2011-07-29 23:19:38下载
- 积分：1
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LMSmatlab
ARM编程特别是系统初始化代码的编写中通常需要实现中断的响应、解析跳转和返回等操作，以便支持上层应用程序的开发，而这往往是困扰初学者的一个难题。中断处理的编程实现需要深入了解ARM内核和处理器本身的中断特征，从而设计一种快速简便的中断处理机制。需要说明的是，具体的上层高级语言编写的中断服务函数不在本文的讨论范围之内(ARM programming particular system initialization code in preparation usually need to achieve interruption of response Jump and return analysis, etc, in order to support the upper application development, which is often plagued by a problem beginners. Interruption of programming needs in-depth understanding of the ARM processor core and features of the interruption itself, be able to design a simple and rapid interrupt handling mechanism. There is a need to explain the specific upper prepared by the high-level language service interruption is not the function within the scope of discussion)
- 2006-12-18 15:09:13下载
- 积分：1
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Matlab-Chinese-Manual
matlab中文手册，主要包括一些基本的函数的说明与使用，适用于matlab初学者(Matlab Chinese manual, including description of some of the basic function and use, suitable for beginners matlab)
- 2014-12-05 09:51:18下载
- 积分：1
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chaos
利用混沌系统给图像加密，加密方法简单易懂，对初学者很好理解(Image encryption using chaotic systems ，encryption method is simple and easy to understand, good for beginners to understand)
- 2020-11-11 17:49:44下载
- 积分：1
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EKF--IEKF--and-UKF-Project
EKF, IEKF, and UKF算法在matlab中的实现(EKF, IEKF, and UKF method implementation)
- 2011-05-29 15:56:38下载
- 积分：1
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statistics.7z
统计计算的一些小函数，求均值，方差，相关系数，SSE，SSR，SST等等(Statistical computing, some small function, find the mean, variance, correlation coefficient, SSE, SSR, SST, etc.)
- 2011-07-02 13:59:05下载
- 积分：1
