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wodewodewode
对于移动通信系统主要有两类衰落:大规模衰落和小规模衰落。大规模衰落表示由于大范围内移动而引起的平均信号能量的减少或路径损耗。而小规模衰落则表现为两种机制:信号的时延扩展和信道的时变特性。对于无线应用,信道的时变特性是由于发射机和接收机相对移动而造成传输路径的变化。这些传播条件的变化速率影响衰落率。如果存在大量反射路径而不存在视行信号分量,此时的小规模衰落称为瑞利衰落(Rayleigh fading),接收信号的包络由瑞利概率分布函数统计描述。这种衰落也就是这次实验我准备研究的(system for mobile communications fading there are two main categories : large-scale and small-scale fading fading. In view of large-scale decline of large scale movement of the average energy of the signal path to reduce or loss. And the decline of small-scale, it was manifested as two mechanisms : signal delay expansion and channel time-varying characteristics. For wireless applications, channel time-varying characteristics as transmitter and receiver relative movement caused transmission path changes. These conditions spread of the rate changes affect the rate of decline. If there is a large number of pathways exist without depending on the signaling component, At that time, the decline of small-scale known as Rayleigh fading (Rayleigh fading). The received signal envelope from Rayleigh )
- 2007-06-20 23:44:47下载
- 积分:1
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MATLAB2010-Essentials
MATLAB2010基础教程,快速掌握MATLAB,短时间内是你运用自如。(MATLAB2010 Essentials, quickly grasp MATLAB, a short period of time that you use it freely.)
- 2013-02-26 10:06:22下载
- 积分:1
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music-
MUSIC方法估计DOA,并求出了估计角(MUSIC method estimates DOA, and finds the estimated angle )
- 2011-11-13 12:31:33下载
- 积分:1
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201405008
matlab一维码识别 利用radon算子做水平方向矫正(radon correct)
- 2015-01-01 22:52:20下载
- 积分:1
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matlab
复杂网络的建模和分析程序,能够分析复杂网络的节点参数,进行重要度等计算(Modeling and analysis of complex network program, the ability to analyze complex network node parameters, for essential computing degree)
- 2020-11-23 17:39:34下载
- 积分:1
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Fmincon_1
fmincon matlab example
- 2012-12-03 05:07:51下载
- 积分:1
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adaboost
采用matlab实现了Adaboost分类器算法,有利于学生对分类器的学习!(The function of this code is to implement the Adaboost algorithm using matlab programming language,which is very useful to learn of all kinds of classifier for students, especially for beginners.)
- 2011-05-11 21:49:47下载
- 积分:1
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relax
现代信号谱分析 RELAX MATLAB 算法例程(spectral analysis of signals)
- 2021-04-14 11:58:55下载
- 积分:1
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PMSM_FOC
说明: 基于matlab搭建PMSM基础控制模型,采用双环PI控制策略。(PMSM basic control model was built based on matlab, and double-loop PI control strategy was adopted.)
- 2020-02-03 11:10:06下载
- 积分:1
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cankaoMLS
自适应滤波的源代码,根据你的情况,稍作改动,即可使用,非常好用(Adaptive filtering the source code, depending on your situation, make a little change, you can use, very easy to use)
- 2011-04-30 10:00:29下载
- 积分:1