ofdm

The method exploits the cyclic prefix inserted between OFDM symbols in time domain to perform the joint estimation of coarse symbol synchronization and the fraction value of carrier frequency offset .

该方案采用多载波（OFDM）系统时域插在循环保护间隔携带的冗余信息进行粗符号和分数频率偏移估计。

In a multipath environment an uncoded OFDM transmission system has a bit error rate ( BER ) comparable with a narrowband radio channel because the fading of each subcarrier is frequency nonselective .

在多路径环境下，因为每一个副载波的衰落是不能进行频率选择的，一个无编码正交频分复用传输系统与窄带无线电传输信道相比较，有一个误码率问题。

OFDM System Simulation and Research of the Key Techniques

OFDM系统仿真与关键技术研究

Method of Creation Process of OFDM Simulation System

OFDM仿真系统的快速创建方法

Until now , there are two methods to implement optical OFDM system .

目前为止，主要有两种方式实现光的正交频分复用技术，分别是相干OFDM和全光OFDM。

A New OFDM System with Complex Coding Diversity in Wireless Transmission

一种新型的复编码分集OFDM系统

The Research of Adaptive Bit and Power Allocation Technology in OFDM Systems

OFDM自适应比特和功率分配技术的研究

New method to reduce PAPR for OFDM based on matrix transform

采用矩阵变换法降低OFDM信号峰均功率比值

Bit Allocation Algorithm for Low Voltage Network OFDM Systems Based Transmitted Efficiency

低压电网基于发射效率的OFDM比特分配算法

A Random Access Mechanism Based on OFDM System

基于OFDM系统的随机信道接入方案

Research of OFDM Pivotal Technology Based on Wavelet Theory

基于小波理论的OFDM关键技术的研究

Study on Self-Adaptive OFDM Technology of High-voltage Power Line Carrier Communication

高压电力线载波通信自适应OFDM调制技术研究

The Synchronization Problem Research of OFDM in FH Communication System

OFDM在跳频通信系统中的同步问题研究

Study on Key Technology of OFDM in Broadband Wireless Communications

宽带无线通信中OFDM关键技术的研究

Related experimental results demonstrate that OFDM can efficiently improve the system transmission performance .

相关实验结果表明了OFDM可以有效提高系统传输性能，体现了该技术在高速通信和抗链路色散上的优势。

OFDM has been widely adopted in existing wireless communication standards .

正是因为这些优势，OFDM技术已经被各种无线通信标准所广泛采用。

Algorithm based on structure of OFDM symbol ;

基于OFDM符号本身结构的算法；

An Equalization Method Based on Linear Precoding Technique for OFDM Systems

OFDM系统中基于线性预编码技术的均衡方法

The Adaptive Algorithm Based on Minimum Average BER Criterion in OFDM System

OFDM系统中基于最小平均误码率的自适应预处理算法的研究

The Research of Frequency Offset Estimation and Synchronization Arithmetic in OFDM System

OFDM系统的频偏估计与同步算法研究

Comparison of frequency and time domain differential detection BER performance of OFDM

频域差分和时域差分检测OFDM的误码率性能对比

Frequency - offset Synchronization and Channel Estimation for OFDM - Based Transmission system

基于OFDM传输中的频率偏移和信道估计

Improved estimation of frequency synchronization in continuous OFDM system

正交频分复用连续系统的一种频率同步估计

Research of diversity combination in spread OFDM system

扩频正交频分复用系统中的分集合并技术

Simple method for carrier offset correction in OFDM system

OFDM系统中一种简单的克服载波频率偏移的方法

Channel Estimation and Equalization in OFDM System with Phase Noise

相位噪声下OFDM系统中的信道估计与均衡

The algorithm converges fast while it is applied to OFDM system .

该算法用于OFDM系统时，得到了一个快速的参数收敛特性。

A New Channel Estimation Algorithm of Shortwave Broadband OFDM System

短波宽带OFDM系统的信道估计新方法

The technology adopts OFDM as the physical layer modulation and access methods .

该技术采用0FDM作为物理层调制和接入方式。

A Novel OFDM Parameter Selection Scheme over Time Varying Multipath Channel

一种新的时变多径环境下OFDM系统参数选取方法