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仿真参数:800个载波，1024点IFFT，载波间频1，无多径和有延迟个码片仿真。调制方式是BPSK和QPSK-simulation parameters : 800 Carrier, the 1024-point IFFT, a carrier frequency between, No multi-path and the delay-chip simulation. BPSK modulation is QPSK
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详细的OFDM设计过程，包括Matlab仿真、DSP源码及文档说明。
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。,OFDM detailed design process, including the Matlab simulation, DSP source code and documentation. OFDM (Orthogonal Frequency Division Multiplexing) technolo
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ML estimation of time and frequency offset in OFDM systems
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DIGITAL MODULATION TECHNIQUES
the material describes digital modulation techniques such as BINARY PHASE SHIFT KEYING (BPSK), DIFFERENTIAL PSK (DPSK), DIFFERENTIALLY-ENCODED PSK (DEPSK), QUADRATURE PSK (QPSK), QUADRATURE AMPLITUDE SHIFT KEYING (Q-AS
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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
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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 (
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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
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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
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PERFORMANCE ANALYSIS OF OFDM
Orthogonal Frequency-Division Multiplexing (OFDM) — essentially identical to Coded OFDM
(COFDM) — is a digital multi-carrier modulation scheme, which uses a large number of closely-spaced
orthogonal sub-carriers. Ea
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scr ipt for performance measurements for Carrier and Sampling Frequency
Offset Correction in OFDM Systems
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Joint maximum likelihood (ML)symbol-time and carrier-frequency offset estimator in orthogonal frequency-division multiplexing(OFDM) systems.-Joint maximum likelihood (ML)symbol-time and carrier-frequency offset estimator in orthogonal frequency-divi
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This an article with an algoritmn about two types of radio-frequency front-end imperfections, that is, carrier frequency offset and the inphase/quadrature (I/Q) imbalance
are considered for orthogonal frequency divisionmultiplexing (OFDM) communica
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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
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carrier frequency estimation in MIMO OFDM system
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OFDM —— OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是MCM Multi-CarrierModulation，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。此程序为ofdm仿真程序！-OFDM- OFDM (Orthogonal Frequency Division Multiplexing) that is ortho
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carrier frequency offset CFO模擬-carrier frequency offset CFO simulation
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channel estimation is single carrier frequency division multiple access also called as DFT spread OFDM.
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The Matlab code privided will generate OFDM symbol and will save the received symbols in two log file. Agorithm will determine Start point and carrier frequency off-set as a Synchronization block.
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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.
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OFMD系统包含8个子载波，f=1Hz，子载波频率间隔为1Hz，每个子载波4-QAM，符号周期1s(The OFMD system contains 8 sub-carriers, f = 1 Hz, sub-carrier frequency interval is 1 Hz, 4-QAM per sub-carrier, symbol period 1s)
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