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Description: 用于模拟时变非平稳的ARMA过程，根据Doppler频移和时变参数计算ARMA过程的系数，可以用来模拟非平稳的多径衰落信道-used to simulate nonstationary time-varying ARMA process, according to Doppler frequency shift and the time-varying parameters ARMA process coefficient, can be used to simulate the non-stationary over Fading Channels
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Size: 918528 |
Author: 赵力 |
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Description: ＯＦＤＭ程序 用于ＭＡＴＬＡＢ仿真 内容为带多普勒频移的瑞利衰落信道
-OFDM procedures for the content of MATLAB with Doppler frequency shift of Rayleigh fading channels
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Size: 3072 |
Author: 唐成玉 |
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Description: 生成一个 Rayleigh flat-fading channel with Doppler shift
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Size: 1024 |
Author: 李理 |
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Description: Carrier-phase synchronization can be approached in a
general manner by estimating the multiplicative distortion (MD) to which
a baseband received signal in an RF or coherent optical transmission
system is subjected. This paper presents a unified modeling and
estimation of the MD in finite-alphabet digital communication systems. A
simple form of MD is the camer phase exp GO) which has to be estimated
and compensated for in a coherent receiver. A more general case with
fading must, however, allow for amplitude as well as phase variations of
the MD.
We assume a state-variable model for the MD and generally obtain a
nonlinear estimation problem with additional randomly-varying system
parameters such as received signal power, frequency offset, and Doppler
spread. An extended Kalman filter is then applied as a near-optimal
solution to the adaptive MD and channel parameter estimation problem.
Examples are given to show the use and some advantages of this scheme.
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Size: 827392 |
Author: 吴大亨 |
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Description: Impulse Response in Rayleigh Fading channel, and Doppler Shift is in it.
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Size: 1024 |
Author: Hui |
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Description: 多径多普勒信道模型，包括快衰落，慢衰落，频率选择性衰落，平坦衰落等-Doppler multipath channel model, including fast fading, slow fading, frequency selective fading, flat fading, etc.
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Size: 9216 |
Author: xiabing |
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Description: 1、Rayleigh_Doppler_singlePath.m
产生单径Rayleigh衰落，采用了6种方法并进行了比较，推荐使用第6种方法；
2、Rayleigh_Doppler_multiPath.m
根据多条径的延时和强度，产生频率选择性衰落；
在单径和多径两个程序中，均提供了其功率谱的输出代码； -1, Rayleigh_Doppler_singlePath.m Single Path Rayleigh fading generated using the six kinds of methods and compared recommend using the first six kinds of methods 2, Rayleigh_Doppler_multiPath.m Drive under a number of delay and intensity, resulting in frequency selective fading in single-track and multi-path two procedures, which provide the power spectrum of the output code
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Size: 9216 |
Author: george |
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Description: 掌握梳状导频和信道估计算法，实现MATLAB仿真；建立简单的系统结构和信道模型；在含多普勒频移的瑞利衰落信道下，进行含信道估计算法的OFDM系统仿真，并进行性能分析。
-Comb master and pilot channel estimation algorithm, the realization of MATLAB simulation the establishment of a simple system structure and channel model with Doppler frequency shift in the Rayleigh fading channel, the channel estimation algorithm with the OFDM system simulation and performance analysis.
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Size: 10240 |
Author: 林杉 |
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Description: 多径衰落模型的基本建模，包括多普勒频移，希望对大家有帮助-Multipath fading model for the basic model, including the Doppler shift, in the hope that we have to help
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Size: 3072 |
Author: 莫子初 |
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Description: A signal is transmitted using a carrier frequency of 900 MHz. It is
transmitted through a multipath channel which can be modelled as Rayleigh
fading. Assumingthe Dopper spread as 10Hz and the number of multipaths as
10, generate the Rayleigh faded signal. Compute the outage rate (the
probability of the signal falls below certain rate, say ?10 dB) of the
signal.
Using MATLAB, demonstrate the path loss as a function of loss parameter
for distances ranging from 2 km to 40 km. Calculate the power loss in dB
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Size: 1024 |
Author: Johnathan |
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Description: 利用Channel Equalizer公式與附件main.m等程式，並選擇Flat=0之模式(該模式為Frequency Selective Fading)及產生Doppler = 500 Hz之Rayleigh fading Channel，利用已知Channel Parameters (rcos, rsin) 增修接收機之Channel Equalizer程式-Channel Equalizer using the formula and accessories main.m other programs, and select the Flat = 0 of the mode (the mode for the Frequency Selective Fading) and generate Doppler = 500 Hz of the Rayleigh fading Channel, the use of a known Channel Parameters (rcos, rsin) Upgrading receiver of the Channel Equalizer program
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Size: 5120 |
Author: Jason |
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Description: 基于Matlab的移动通信中多径衰落信道的仿真\基于多径传输和多普勒频移的 瑞利（Rayleigh）信道的仿真 主要考虑不同条件下的仿真-Matlab-based mobile communications in the multipath fading channel simulation \ based multi-path transmission and Doppler frequency shift of the Rayleigh (Rayleigh) channel simulation the main consideration of the simulation under different conditions
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Size: 120832 |
Author: 王明 |
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Description: Modeling Rayleigh Fading with doppler effect
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Size: 9216 |
Author: meshuggah |
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Description: 瑞利衰落在IT++上的仿真，多普勒频率为0.1- generate a correlated Rayleigh fading process with a normaized Doppler frequency equal to 0.1. The normalized Doppler is defined as the multiplication of the maximum Doppler frequency by the sampling time
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Size: 1024 |
Author: raven |
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Description: 衰落信道仿真
function r = rayleigh( fd, fs, Ns )
r = rayleigh(fd,fs,N)
A Rayleigh fading simulator based on Clarke s Model
Creates a Rayleigh random process with PSD determined
by the vehicle s speed.
INPUTS:
fd = doppler frequency
set fd = v*cos(theta)/lambda
v = velocity (meters per second)
lambda = carrier wavelength (meters)
theta = angle w/ respect to tangent (radians).
fs = sample frequency (Samples per second)
Ns = number of samples of the Rayleigh fading
process to produce
OUTPUTS:
r = row vector containing Ns samples of the Rayleigh
fading process
Author: Matthew C. Valenti
Mobile and Portable Radio Research Group
Virginia Tech
For Academic Use Only-Fading channel simulation
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Size: 3072 |
Author: zhouyi |
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Description: 考虑阴影效应，多普勒频移等的影响，用于描述瑞利衰落信号的信号特征-Take into account the shadow effect, Doppler shift, etc., used to describe the signal characteristics of the Rayleigh fading signal
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Size: 1024 |
Author: lulu |
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Description: 基于多普勒扩展的平坦衰落信道仿真由matlab给予仿真 结果为2个图-The simulation based on Doppler spread flat fading channel
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Size: 63488 |
Author: 李辉 |
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Description: Doppler Spectrum of rayleigh fading channel using sinusoidal functions
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Size: 1024 |
Author: mostafa |
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Description: 连续导频正弦波通过存在Doppler频移的快衰落信道复模型（基带等效模型）的构造-Continuous pilot frequency sine wave by the presence of Doppler shift fast fading channel model (complex baseband equivalent model) structure
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Size: 5120 |
Author: dabao |
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Description: 分析BPSK在对数长距离、对数正态阴影模型中的误码率，以及在ITU M多普勒效应下冲击响应与多径增益。程序为已提交作业，可直接运行。-In the analysis of several long-distance BPSK, lognormal shadow model error rate, as well as multi-path impulse response and gain at ITU M Doppler effect. Program has been submitted for the job can be run directly.
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Size: 221184 |
Author: wxc |
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