Here, we introduce OFDM technology.
在此，我们引入OFDM技术。
Recently, MIMO-OFDM technology has become a research hotspot.
目前，MIMO - OFDM技术已成为国内外研究热点。
In the paper, the synchronization of the OFDM technology is in-depth discussed.
本文就将对OFDM同步技术进行深入的探讨。
OFDM technology has been used in various high speed wide bandwidth wireless system.
正交频分复用(OFDM)技术已经广泛应用于各种高速宽带无线通信系统中。
OFDM technology is a kind of transmitting way to solve effectively the inter symbol interference caused by multi-paths.
OFDM技术是一种可有效解决多径造成符号间干扰的传输手段。
However, there are well-known shortcomings of OFDM technology: the timing offset and frequency offset is very sensitive.
但是OFDM技术有众所周知的缺点：对定时偏差和频率偏差十分敏感。
Based on the adaptive antenna and OFDM technology, a new adaptive beamforming algorithm and the optimum array weight vector were obtained.
基于自适应天线与OFDM技术，提出一种新的自适应波束成形算法，获得了最佳的阵列加权系数。
At present, more comprehensive attention has been taken to OFDM technology in data transmitting systems with wireless time-varying channel.
目前，正交频分复用(OFDM)技术因能在无线时变信道中进行高速数据传输而受到广泛的关注。
Based on the principle of the OFDM technology, the multi-carriers modulation has strong abilities in counteracting the multi-path response.
根据OFDM技术的原理，多载波调制技术具有良好的抗多径效应能力。
In this paper, a novel power allocation and adaptive modulation method is proposed on the basis of the combination of MIMO and OFDM technology.
本文在已知信道状态信息的前提下，将MIMO和OFDM技术相结合，提出了一种新的MIMO - OFDM系统的功率分配和自适应调制方法。
However, there are still some difficulties in realizing the technologies. The synchronization of the OFDM technology is one of the difficulties.
但是在某些技术实现上仍有许多难点，OFDM同步技术就是其中之一。
Compared with the traditional scheme of single-carrier modulation, OFDM technology has more effective anti-jamming ability and achieves higher transmission rate.
与传统的单载波调制方式相比，OFDM技术可以有效地抵抗信道多径干扰，提高系统的传输速率。
Then the principle of OFDM technology is explained and the baseband signal process and the frequency conversion are discussed primarily with some detail problems explained.
然后阐述了OFDM技术原理，重点讨论了基带信号处理和变频两部分，对具体细节做了详细的说明。
Therefore, study the application of OFDM technology in high mobility environment, and increase its resistance to Doppler effect has important theoretical and practical value.
因此，研究OFDM技术在高速移动环境下的应用，提高其抗多普勒效应的能力，具有重要的理论意义和实用价值。
OFDM technology has many advantages, such as defending the multipath fading and high bandwidth efficiency, which are suitable for the high-rate data transmission in wireless enviroment.
而且OFDM技术具有抗多径衰落，频谱利用率高等优点，特别适合于无线环境下的高速数据传输。
OFDM technology will become the core technology for wireless communication in the future, OFDM will be widely used in cognition radio, in the 4G mobile communication and the wireless broadband access.
OFDM技术将成为未来无线通信中的核心技术，在认知无线电、4G移动通信和无线宽带接入等领域得到广泛的应用。
Why DSL can be called a wide band technology is because it exploits OFDM which represents Orthogonal Frequency Division Multiplexing.
DSL技术之所以能够被称为宽带技术，主要是由于它的复用方式是OFDM。
OFDM is precisely because of its anti-interference capability features and become the core technology of wireless communications.
OFDM技术正是由于其抗干扰能力强的特点，成为了当今无线通讯的核心技术。
OFDM (Orthogonal Frequency Division Multiplexing) is a new modulation technology, it is suitable to high-data-rate transmission in the wireless transfer channel with multi-path transmission.
正交频分复用(OFDM)是一种新型调制技术，特别适合在多径传播的无线移动信道中高速传输数据。
Synchronization is basic technology of OFDM system.
同步是OFDM系统的基本技术。
Based on the key technology research in B3G-TDD systems, Link Adaptation in multi-user OFDM systems are researched in this dissertation.
本文建立在本实验室B3G - TDD系统研究的基础上，主要研究多用户OFDM系统中的链路自适应技术。
The thesis researches the application of OFDM modulating technology on mobile communication based on improving transfer effect in limited band broad and overcoming Multi_path fading.
本文从提高无线移动传输系统传输速率和对抗多径的角度，研究OFDM调制技术在无线移动通信中的应用。
The FFT processer adopts the pipeline and parallel technology and can complete 64 points FFT computation in 64 clocks. It is able to meet the need of OFDM system.
本文设计的FFT处理器采用流水线和并行处理技术，在64个时钟周期完成64点复数定点FFT运算，可以满足OFDM系统的需要。
For the OFDM system, a scheme of combining space-time code with the adaptive power control technology is proposed with simulation results, which increases the diversity gain and the adaptive gain.
对OFDM系统提出将空时编码与自适应功率控制技术相结合，给出了仿真结果，提高了分集增益和自适应增益。
Due to its high spectrum utilization and good capability of preventing muti - path interference, OFDM is regarded as the core technology in Beyond 3g mobile communication system.
OFDM技术以其高的频谱利用率和良好的抗多径干扰能力，被看作是3G以后移动通信的主流技术。
Orthogonal Frequency Division Multiplexing (OFDM) is a critical technology for the realization of broadband power line communication.
正交频分复用(OFDM)是实现宽带电力线通信的关键技术。
The estimation of the coarse frequency offset and timing is one of the key technology in the uplink multiuser OFDM system.
上行链路中的粗频偏及定时估计是多用户OFDM系统的关键技术之一。
The estimation of the coarse frequency offset and timing is one of the key technology in the uplink multiuser OFDM system.
上行链路中的粗频偏及定时估计是多用户OFDM系统的关键技术之一。
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