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PRIME
- 载波通信，法国规范，ofdm，plc设计，供大家参考-Carrier communication, the French specification, ofdm
OFDM_Technique_Simulation_Performance
- 摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向，交频分复用 OFDM)是一种无线环境下的高速传输技术，它对高速列车控制信息传输中卞要受到的由于多 径传播引起的快衰落所产生的影响有很强的抵抗能力.本文首先介绍了OFDM技术的发展和 基本原理，然后在计算机上用M atlal〕对其性能进行了仿真，仿真中将OFDM与传统的单载波 调制方式—i1，交振幅调制( 1frQAM)对抗多径十扰的性能进行了比较，最后分析了一者的仿真结果. -Abstract: Based
practisereport
- OFDM(正交频分复用)技术实际上是MCM(Multi-Carrier Modulation，多载波调制)的一种。其主要思想是，将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰(ICI)。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容-OFDM (
OFDM_Final_Report
- A MATLAB program has been written to investigate Orthogonal Frequency Division Multiplexing (OFDM) communication systems. This program is valuable for future researchers simulating systems that are too theoretically complex to analyze. Single-car
ofdm
- 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 Divisi
CARRIER_FREQUENCY_OFFSET_RECOVERY_FOR_ZERO-IF_OFD
- This a thesis about CARRIER FREQUENCY OFFSET RECOVERY FOR ZERO-IF OFDM RECEIVERS.rar. The zero intermediate frequency receiver architecture has now become popular as it has both economic and size advantages over the traditional superheterodyne ar
channel-estimation-SCFDMA
- channel estimation is single carrier frequency division multiple access also called as DFT spread OFDM.
OFDM
- OFDM载波同步方法，对开发第四代通信系统的人来说，非常有用。-OFDM carrier frequency synchronization method, on the development of fourth generation communication system of people, very useful.
OFDM
- OFDM正交多载波传输技术具有抗无线传输多径效应影响的能力，正逐步成为各种宽带无线数字传输系统-OFDM Orthogonal multi-carrier transmission technology with anti-multipath effects of wireless transmission capacity, is becoming a variety of broadband wireless digital transmission system
4
- ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列 的算法有较高的估计精度，但降纸了系统传输效率。-Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundationa
5198916[1]
- Differential Space-Time-Frequency Codes for MB-OFDM UWB with Dual Carrier Modulation
MIMO-Wireless-Communications
- 本书从信息论与错误概率的角度，着重分析了真实世界传播如何影响MIMO容量和性能，实际鲁棒的空时码的设计，详细讨论了预编码、天线选择和多载波传输。-Book from the perspective of information theory and error probability, focused on analysis of real-world communication can affect MIMO capacity and performance, the actual robus
gjlj
- 重点研究 了低信噪比﹑多径瑞利衰落信道条件下，基于高阶累积量的OFDM信号盲识别技 术。提出了利用奇数阶累积量区分OFDM信号与单载波信号的方法，并对基于三 阶和五阶累积量的算法进行了仿真分析。 -﹑ Focus on the low SNR multipath Rayleigh fading channel conditions, based on cumulant OFDM signal blind identification technology. Made a dist
OFDM-simulation-on-matlab
- 这是一篇论文，详细描述了OFDM多载波通信原理，并以此设计了MATLAB仿真程序，比较系统，详细，对学习了解OFDM很有帮助。-This is a paper, a detailed descr iption of OFDM multi-carrier communication theory, and thus the design of the MATLAB simulation program, a more systematic, detailed, helpful in learnin
OFDM-SIMULATION-in-MATLAB
- In a single carrier communication system, the symbol period must be much greater than the delay time in order to avoid inter-symbol interference (ISI) [1].-In a single carrier communication system, the symbol period must be much greater than the dela
OFDM
- 一种新的突发OFDM传输系统定时和载波频率捕获联合算法-A new burst OFDM transmission system timing and carrier frequency acquisition combined algorithm
BER-ANALYSIS-IN-OFDM
- Multi-Carrier Modulation is a technique for data-transmission where a high-bit rate data stream is divided into several parallel low bit-rate data streams and using these low bit-rate data streams to modulate several carriers. Multi-Carrier Transmiss
FULLTEXT01
- OFDM Carrier Frequency Offset Estimation
STUDY AND ANALYSIS OF TIMING OFFSET ESTIMATION METHODS IN OFDM SYSTEMS
- OFDM is a multi-carrier transmission technique. It converts the frequency selective fading channel into a collection of parallel flat fading sub-channels which simplifies the structure of a receiver. OFDM has been widely used in communication system
FrequencyOffsetEstimationOFDM
- OFDM载波频偏估计器，保护捕获和跟踪模式，捕获范围很宽，采用ML估计器，在AWGN和多径信道均表现优良的快速捕获性能。-OFDM carrier estimator