orthogonal frequency division multiplexing

A symbol timing loop for orthogonal frequency division multiplexing ( OFDM) soft receiver was investigated and a digital interpolation timing loop for OFDM receiver was proposed.

提出了一种可用于正交频分复用（OFDM）软件接收机的全数字化内插同步环路。

Orthogonal Frequency Division Multiplexing ( OFDM ) has high spectrum efficiency and side-effect of multipath propagation.

正交频分复用 ( OFDM ) 技术由于具有较高的频谱效率,而且可以有效地对抗多径传输,已成为高速数据传输的关键技术.

Simulation results show that the proposed AWGN than the traditional orthogonal frequency division multiplexing ( OFDM ) scheme .

仿真结果表明,所提出的基于小波包的新型多载波调制系统的性能要优于传统的正交频分复用 多载波调制 系统.

A subspace-based blind channel estimator has been developed for space time coding orthogonal frequency division multiplexing ( STC-OFDM) system with two transmit antennas and two receive antennas.

针对使用2个发射天线和2个接收天线并且采用循环前缀的空时编码正交频分复用系统（STC-OFDM），提出了一种信道盲估计算法，并给出信道可被辨识的条件。

A space-time-frequency ( STF) coded orthogonal frequency division multiplexing ( OFDM) transmitter diversity scheme for fast fading frequency selective channels is proposed. The proposed STF-OFDM transmission scheme owns time diversity gain.

提出了一种基于空间时间频率（STF）编码的正交频分多路复用（OFDM）发射分集方案，这种传输方案可用于频率选择性快衰落信道。

Using banding segmented transmission Orthogonal Frequency Division Multiplexing ( BST-OFDM) Japanese NHK the ISDB-T standard.

采用频带分段传输正交频分复用（BST-OFDM）的日本NHK ISDB-T标准。

Multiple Input Multiple Output ( MIMO) antenna is a typical spatial diversity technique, by combining multiple antennas space-time block coding with orthogonal frequency division multiplexing ( OFDM) forming space-frequency block coding, In multipath channel fading conditions, which also can get additional frequency diversity gain.

多输入多输出天线既是一种空间分集技术，将多天线中的空时分组编码与正交频分复用技术相结合构成空频分组编码，在多径衰落信道条件下还可以获得额外多径分集增益。

This paper proposes a scheme for temporary time locking by using FFT ( fast fourier transformer) in OFDM ( orthogonal frequency division multiplexing). The OFDM has a good BER in multipath.

提出了OFDM（正交频分复用）利用FFT（傅里叶变换）实时同步方式的方案，在多径环境下具有有良好的特性。

OFDM is a type of modulation is called orthogonal frequency division multiplexing.

OFDM是一种新型的调制方式,称为正交频分复用.

As the central part of the next-generation mobile communications, the Orthogonal Frequency Division Multiplexing ( OFDM) technology has been widely applied to wireless network.

作为高传输速率的正交频分复用（Orthogonal Frequency division Multiplexing，OFDM）技术现如今被广泛应用到无线网络中，也是下一代移动通信的核心部分。

A novel microwave six-port network orthogonal frequency division multiplexing ( OFDM ) demodulator is presented in this paper.

该文提出了一种新的基于射频六端口网络的 多频带 OFDM 解调器.

Orthogonal frequency division multiplexing ( OFDM ) is a multi-carrier modulation method .

正交频 分多路 复用是一种 多载波调制 技术.

An adaptive orthogonal frequency division multiplexing ( OFDM) scheme is described with a simple space time coded transmit diversity for frequency selected fading channel by combining adaptive modulation with spacial diversity.

将自适应调制技术和空间分集技术有机地结合起来，提出了一种与简单空时编码发射机分集相结合的恒定比特率自适应正交频分复用（OFDM）方案。

FH-OFDM is a technology that combines frequency-hopping ( FH ) and Orthogonal Frequency Division Multiplexing ( OFDM ) .

跳频 - 正交频分 复用系统 是一种把跳频通信和正交频分复用相结合的技术.

Orthogonal frequency division multiplexing ( OFDM ) is a bandwidth-efficient modulation scheme with robustness to frequency selective fading.

正交频分复用 ( OFDM ) 具有良好的抗频率选择性衰落性能和充分的带宽利用率.

Therefore, DS-CDMA is combined with Orthogonal Frequency Division Multiplexing ( OFDM) to form the MultiCarrier CDMA ( MC-CDMA), which can support high rate transmission.

因此，人们将OFDM同DS-CDMA相结合，形成适用于高速率传输的MC-CDMA。

The theme mainly focused on the problem how to apply Orthogonal Frequency Division Multiplexing modulation technology to the low-frequency elastic wave through-the-earth communication system which takes the layered earth for transmission medium.

本课题研究的是把正交频分复用调制技术应用在以分层大地为传输媒介的低频弹性波透地通信系统中。

An accurate channel estimation is crucial for the performance of multiple-orthogonal frequency division multiplexing ( MIMO-OFDM ) systems.

准确的信道估计是保证MIMO -OFDM 系统传输质量,发挥其优越性的关键.

We propose a novel adaptive interleaving scheme for orthogonal frequency division multiplexing ( OFDM ) systems.

针对正交频分复用 ( OFDM ) 系统,提出了一种新的自适应交织器算法.

Orthogonal frequency division multiplexing ( OFDM ) is a special multi-carrier transmission technology.

正交频分复用 ( OrthogonalFrequencyDivisionMultiplexing, OFDM ) 是一种特殊的 多载波 传输技术.

A novel parameter, cubic metric is introduced to weigh the character of signals. It analyzes the peak average ratio and complementary cumulative distribution curve of the Orthogonal Frequency Division Multiplexing signal used in an OFDM system.

介绍了一种新的用来衡量信号特性的参数-立方制系数（Cubic Metric），分析了正交频分复用（OFDM）信号的峰值平均功率比，立方制系数及互补累积分布函数（CCDF）曲线。

Orthogonal frequency division multiplexing ( OFDM ) systems are very sensitive to the synchronization error.

正交步分 复用系统 对同步误差非常敏感.

Orthogonal frequency division multiplexing ( ofdm ) communication system matlab simulation program.

正交频分复用 ( ofdm ) 通信系统的matlab仿真程序.

With the advantages of high frequency spectrum utilization efficiency and resistance to multipath interference, it is imperative for orthogonal frequency division multiplexing ( OFDM) technology on the application of mobile communication development field, in the future.

凭借高频谱利用率和抗多径干扰的优势，正交频分复用（OFDM）技术在未来移动通信发展领域中的应用势在必行。

At last, we talk about the key technique of power line communication, OFDM ( short for orthogonal frequency division multiplexing), and implement the simulation of transmission and reception using MATLAB.

文中最后，讨论了电力线载波的关键技术&OFDM正交频分复用技术，并应用MATLAB实现了信号收发器的仿真。

China digital television terrestrial broadcasting standard GB20600-2006 is based on TDS-OFDM ( Time-Domain Synchronous orthogonal Frequency Division Multiplexing) systems.

中国地面数字电视广播标准GB20600-2006是基于时域同步-正交频分复用（TDS-OFDM）系统的。

A new admission control scheme was presented in packet-switched orthogonal frequency division multiplexing ( OFDM ) wireless communications.

针对基于分组交换的宽带正交频分复用 ( OFDM ) 无线通信系统,提出了新的动态呼叫接纳控制策略.

In these methods, Orthogonal Frequency Division Multiplexing ( OFDM) is seen as the key technologies of the fourth generation mobile communication.

在这些方法中，正交频分复用（Orthogonal Frequency division Multiplexing，OFDM）技术被看好为第四代移动通信的关键技术。

A channel estimation scheme for a multi-input multi-output orthogonal frequency-division multiplexing ( MIMO-OFDM ) system was presented.

给出了一种适于多输入多输出 - 正交频分复用 ( MIMO -OFDM ) 系统的信道估计方案.