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Description: 代码为对OFDM符号信道估计结果进行线性插值的仿真代码-Code symbols for the OFDM channel estimation results of linear interpolation of the simulation code
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Size: 1024 |
Author: 张宇治 |
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Description: 在802.11.3a信道环境下，基于MB-OFDM UWB的仿真程序，很全。-At 802.11.3a channel environment, the MB-OFDM UWB based on the simulation program, it is wide.
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Size: 8192 |
Author: 小范 |
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Description: 这是一个2*2多入多出正交频分复用信道估计模型-This is a 2* 2 Rayleigh channel model of the mimo-ofdm channel estimation model
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Size: 2048 |
Author: leo |
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Description: OFDM simulation, including channel, transmitter, receiver, and simulink
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Size: 160768 |
Author: 猴小黑 |
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Description: ofdm基本原理 信道估计基本算法研究 应用前景-the basic principles of ofdm channel estimation algorithm for application of basic
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Size: 1971200 |
Author: 宋迪 |
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Description: 一个用M文件编写的关于OFDM物理层的仿真，包括了发送和接受端以及基于训练序列的信道估计，能计算误码率-A document prepared by M on the simulation of OFDM physical layer, including the sending and the receiving end as well as the training sequence based channel estimation, the bit error rate can be calculated
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Size: 7168 |
Author: guangangyu |
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Description: OFDM程序，这么安排矩阵的目的是为了构造共轭对称矩阵
共轭对称矩阵的特点是 在ifft/fft的矢量上 N点的矢量
在0，N/2点必须是实数 一般选为0
1至N/2点 与 （N/2）+1至N-1点关于N/2共轭对称- BPSK simulation using a carrier cosine wave with ISI
clc
close all
clear all
figure(1)
n=160
for i=1:n
data(i)= 2*round(rand)-1
end
create modulated BPSK signal
first expand the bit stream
exdata=[]
for i=1:length(data)
for rep=1:5
exdata= [exdata data(i)]
end
end
ts=.1
t=1:ts:80.9
carrier=cos(pi*t)
multiply expanded bitstream by cosine wave with carrier frequency
this is the BPSK that is to be transmitted over the channel
bpsk=carrier.*exdata
bpsk=[bpsk(length(bpsk)-1) bpsk(length(bpsk)) bpsk]
plot(bpsk)
generating the noise
p=rand(1,800)*2*pi
p=rand*2*pi
snr=10
r=sqrt(-1*(1/snr*log(1- rand)))
no = 5*(r.* exp(j*p))
no = (r.* exp(j*p))
value of alpha
al=rand+j*rand
al=1
Spreading channel with the alpha as the variable
for k=5:5:795
for l = 1:5
al=round(rand)+j*round(rand)
rec(k+l)=bpsk(k+l)+al*bpsk(k-5+l)
end
end
rxdata=rec+ no
begin demodulation
first multiply recie
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Size: 6146048 |
Author: 卞敏捷 |
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Description: OFDM 同步算法的描述 和源代码包括信道说明 和 各种参数的定义-OFDM synchronization algorithm description and source code including the channel description and definition of various parameters
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Size: 4096 |
Author: jason |
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Description: 基于导频的ofdm信道估计ls 和mmse算法 -Pilot-based channel estimation of ofdm and mmse algorithm ls
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Size: 10240 |
Author: zhoukangj |
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Description: 只有一个文件，包含64个子载波的OFDM系统在多径衰落信道中LS和MMSE信道估计误码率比较，MATLAB程序-Only then a document, contains 64 sub-carriers the OFDM systems in the multi-diameter fading channel LS and the MMSE channel estimate error rate comparison, the MATLAB procedure
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Size: 4096 |
Author: 卡其米奇 |
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Description: 正交频分复用（OFDM，Orthogonal Frequency Division Multiplexing）是一种多载波数字调制技术，也可以被当作一种复用技术。具有频谱利用率高、抗多径干扰等特点，OFDM系统能够有效地抵抗无线信道带来的影响，例如信道的频率选择性衰落，脉冲噪声和共信道干扰的影响。本文主要介绍了OFDM原理的相关知识。-The Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) is more than one kind of carrier digital modulation technology, may also treat as one kind of multiplying technology. Has the frequency spectrum use factor high, characteristics and so on anti-multi-diameter disturbance, the OFDM system can resist the influence which effectively the wireless channel brings, for example channel s frequency selectivity declines, impulse noise/pulse noise/pulsive noise and altogether channel disturbance influence. This article mainly introduced the OFDM principle related knowledge.
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Size: 333824 |
Author: 卡其米奇 |
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Description: 包含OFDM系统仿真，星状导频仿真，瑞利信道估计以及FFT与DFT算法复杂度比较。集合了12个项目，呵呵。-Contains the OFDM system simulation, the astroid pilot frequency simulation, the Rayleigh channel estimates as well as FFT and the DFT algorithm order of complexity compares. Has gathered 12 projects, ha-ha.
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Size: 49152 |
Author: 卡其米奇 |
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Description: 本文在分析移动无线信道衰落特性的基础上,阐述了OFDM系统的基本原理,主要研究了OFDM通信系统中的基于导频符号的信道估计问题,分析了几种经典的信道估计算法以及相关的关键技术环节。 在此基础上介绍了OFDM技术在现实中的一个应用——WLAN IEEE802.11a系统模型,利用Matlab仿真软件完成OFDM系统信号生成、噪声生成、导频插入、循环前缀、调制、解调等部分的设计,最后结合计算机仿真对系统关键技术(导频、循环前缀、估计算法)的有效性和可行性进行了全面的分析与比较。适合matlab研究-Based on the analysis of mobile channel fading characteristics based on the OFDM system on the basic principles of research in the OFDM communication system of the pilot symbols based on channel estimation problem, an analysis of several classical channel estimation algorithm and the associated key technical links. On this basis, introduced OFDM technology in a practical application- WLAN IEEE802.11a system model, using Matlab simulation software to complete OFDM signal generation, noise generation, pilot insertion, cyclic prefix, modulation, demodulation and other parts of the design, the final combination of computer simulation of the system of key technologies (pilots, cyclic prefix, it is estimated that algorithm) the effectiveness and feasibility of a comprehensive analysis and comparison. Suitable for research matlab
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Size: 1339392 |
Author: 赵洪森 |
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Description: 研究OFDM系统抗干扰技术，采用Matlab仿真环境，评价采用循环前缀(CP)和均衡技术的OFDM系统在多径环境和衰落信道条件下的误比特率、误帧率等性能指标。-Study on anti-jamming technology OFDM system using Matlab simulation environment to evaluate the use of cyclic prefix (CP) technology and balanced OFDM system in multipath fading channel environment and under the condition of bit error rate, frame rate, such as misuse of performance indicators.
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Size: 6144 |
Author: xiefengbo |
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Description: 文章简述了OFDM系统，分析了多径传输时延以及加入信道编码之后的误码率。-The article outlines the OFDM system, an analysis of multi-path delay and channel coding, after adding the error rate.
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Size: 122880 |
Author: hquwgz |
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Description: MIMO-OFDM系统中的信道估计技术研究(硕士论文)-MIMO-OFDM system channel estimation technology research (master' s thesis)
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Size: 3402752 |
Author: GenLung Wu |
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Description: COMPARATIVE STUDIES OF MB-OFDM AND DS-UWB WITH CO-EXISTING SYSTEMS IN AWGN CHANNEL
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Size: 225280 |
Author: nguyen nghia |
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Description: This an excellent matlab code for LS estimation technique that is one of the most powerfull technique for channel estimation in OFDM,-This is an excellent matlab code for LS estimation technique that is one of the most powerfull technique for channel estimation in OFDM,
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Size: 666624 |
Author: zeeshan |
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Description: OFDM的MATLAB系统仿真，使用QPSK调制、梳状导频LS信道估计，并且还进行了LS和MMSE信道估计方法的性能比较-MATLAB simulation of the OFDM system, QPSK modulation, combed pilot LS channel estimation, and performance comparison of LS and MMSE channel estimation
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Size: 8192 |
Author: Ruby |
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Description: matlab实现的OFDM运用于ROF光纤无线通信系统的仿真，用的是4QAM调制，LS信道估计，还包括Optisystem的仿真，是毕设的仿真，非常珍贵。-matlab achieve ROF optical fiber used in the OFDM wireless communication system simulation, using 4QAM modulation, LS channel estimation, the simulation also includes Optisystem is a complete set of simulation, very precious.
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Size: 25600 |
Author: Ruby |
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