Here, we introduce OFDM technology.
在此，我们引入OFDM技术。
An OFDM System, which is a relatively new method.
一种OFDM的系统实现，这是一个较新的实现方法。
Synchronization is basic technology of OFDM system.
同步是OFDM系统的基本技术。
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。
OFDM systems can work in either continuous mode or burst mode.
OFDM系统可分为连续工作模式和突发工作模式。
However, OFDM is sensitive to frequency offset and phase noise.
然而，OFDM系统对频率偏差和相位噪声比较敏感。
At last, we focus the research on MIMO-OFDM via carrier interferometry.
最后，我们对基于载波干涉的MIMO - OFDM系统作了研究和分析。
In this paper, the nonlinear effect on OFDM symbol error rate is studied.
研究了非线性效应对OFDM符号误码率的影响。
The time-frequency plane of a standard OFDM system is a rectangular grid.
标准OFDM系统设计的时-频面为矩形网格。
The principle and crucial technique of OFDM is introduced at the beginning.
论文首先介绍了OFDM技术的基本原理与关键技术及其优缺点。
The paper focus on the research of channel estimation method in OFDM system.
本文的研究重点是OFDM系统的信道估计方法。
So OFDM system has requirement to research and design radio channel equalizer.
因此，对OFDM系统的信道均衡设计提出了要求。
This paper introduces the Doppler effect on OFDM system in mobile environment.
分析了在高速移动环境下存在的多普勒效应，指出了它对OFDM系统的影响。
Phase correction is essential to OFDM-based high-data-rate transmission system.
相位校正对基于OFDM的高速数据传输系统至关重要。
So it is necessary to study the channel estimation method of MIMO-OFDM systems.
因此，有必要对MIMO - OFDM系统的无线信道估计方法进行研究。
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。
Then, the phase estimator can further determine the phase of frequency response of OFDM channel.
此后，相位估计机可以进一步对OFDM信道的相频响应进行估计。
Channel Estimation is an important technology in OFDM system which affects the performance directly.
信道估计是OFDM系统中一项关键技术，对于整个系统的性能具有直接的影响。
Orthogonal frequency division multiplex (OFDM) is an effective method to realize high data rate transmission.
正交频分复用(OFDM)是实现高速数据传输的一种有效方法。
Orthogonal frequency division multiplex (OFDM) is an effective method to realize high data rate transmission.
正交频分复用(OFDM)是实现高速数据传输的一种有效方法。
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