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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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The-Matlab-simulation--
电力谐波带来了严重的危害，有源滤波器是抑制电力谐波的一种有效手段。在Matlab 仿真环境中搭建了有
源滤波器的系统模型，并对其进行了仿真。仿真结果表明，各仿真模块能够完成各自的功能，整个系统的滤波效果非
常好。因而，该仿真模型能对软、硬件的设计起到重要的指导作用(Power Harmonics brought serious harm, active filter is an effective means of suppressing power harmonics. In the Matlab simulation environment to build a model of the active filter system and its simulation. The simulation results showed that the simulation module to complete their respective functions, the filtering effect of the whole system is very good. Thus, the simulation model capable of hardware and software design plays an important role in guiding)
- 2013-12-10 16:42:53下载
- 积分：1
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ipiq
ipiq谐波检测方法，模型供参考，基于matab/simulink 搭建。(ipiq harmonic detection methods, models for reference, based matab/simulink structures.)
- 2014-03-30 16:21:52下载
- 积分：1
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PWATOOLS-master
分段仿射系统的matlab开发工具箱；
实现PWA系统的建模和稳定性分析；(
Matlab development kit of piecewise affine system
Modeling and stability analysis of PWA system )
- 2020-07-03 14:00:01下载
- 积分：1
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Programs_17a
时间序列分析模型构建方法、过程及步骤,并通过假设的时间序列用MATLAB软件,实现了模型的定阶、模型参数的估计过程。(To get the Lds MOdel.
)
- 2010-11-04 17:02:25下载
- 积分：1
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QPSK_awgn
matlab中QPSK的simulink仿真，包括星座图以及频谱分析(The simulink matlab in QPSK simulation, including constellation and spectrum analysis)
- 2010-05-11 20:45:55下载
- 积分：1
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LT_matlab
线性喷泉码的一种——LT码，程序完整，可以在MATLAB环境中直接运行。(A kind of linear fountain code- LT codes, procedures complete, can be run directly in the MATLAB environment.)
- 2021-04-11 02:48:58下载
- 积分：1
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Estimation_Theory
In this project, we have designed and implemented a method to estimate the dual frequencies in sinusoids immersed in additive white Gaussian noise. The Cramér-Rao lower bound (CRLB) for the signal model and a nonlinear least square frequency estimator are derived. The estimator is evaluated by
numerical examples.
- 2011-06-29 20:05:51下载
- 积分：1
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MATLAB-lvboqisheji
基于matlab编写的小程序，可以实现观察信号的泄漏现象，亲自验证好使。(Based on matlab prepared applet, you can achieve the observed signal leakage phenomenon, personally verify so.)
- 2013-10-24 15:10:53下载
- 积分：1
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Henon_Check
本代码是对Henon 映射的编写及恢复，可以完成一定大小的图像处理。(This code is written and recovery Henon map, you can complete a certain size of image processing.)
- 2011-05-10 22:45:19下载
- 积分：1
