At present, the channel estimation of wireless OFDM systems has been still in the progress of research and exploring.
目前，对于无线OFDM系统的信道估计方法仍处于研究和探索阶段。
This thesis mainly focuses on the time-varying channel estimation methods based on pilot tones in wireless OFDM systems.
本文主要研究了无线OFDM系统中基于导频的时变信道估计方法。
The tradeoff between performance and complexity must be taken into account in channels estimation algorithm of wireless OFDM systems.
无线OFDM系统中基于导频辅助的信道估计必须折衷考虑算法性能与算法复杂度。
This thesis mainly focuses on the algorithms for channel estimation in the wireless OFDM systems including pilot assisted channel estimation and channel blind estimation.
本文主要研究无线OFDM系统中的信道估计算法，包括基于导频辅助信道估计算法和信道盲估计算法。
A symbol timing algorithm for orthogonal frequency division multiplexing (OFDM) systems with the cyclic prefix under wireless channels is proposed.
提出了一种新的无线信道下基于循环前缀的正交频分复用系统符号定时同步算法。
Therefore, OFDM has been a support technique in the 4G wideband wireless communication systems.
因此，OFDM已成为未来高速无线通信系统4G的支撑技术。
This paper proposes a novel channel estimation method for wireless Orthogonal Frequency Division Multiplexing (OFDM) systems.
该文提出了一种新的信道估计算法，用于无线移动信道下的正交频分复用(OFDM)系统。
This dissertation is concerned with channel estimation in both OFDM and MIMO-OFDM wireless communication systems and adaptive modulation in MIMO-OFDM systems.
本文研究了OFDM和MIMO-OFDM无线通信系统的信道估计技术以及MIMO-OFDM系统的自适应调制技术。
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。
Because of the ability to combat multipath interference and high spectral efficiency, OFDM has become the first choice of physical layer technology in future broadband wireless access systems.
OFDM技术以其良好的抗多径干扰能力和高频谱利用率成为未来宽带无线接入系统的首选物理层技术。
D thesis, OFDM wireless broadband mobile communication systems channel estimation and equalization study, Ph.
OFDM无线宽带移动通信系统中信道估计与均衡技术研究，Ph。
MIMO/OFDM is an effective architecture for future wireless communication systems.
MIMO／OFDM是未来宽带无线通信接口的有效架构。
Firstly, the characteristics and model of wireless channel and the basic principle, structure and characteristics of OFDM systems are introduced.
本文首先介绍了移动通信系统的信道特性以及信道模型，并详细描述了OFDM系统的基本原理、结构以及特点。
Therefore, the combination of MIMO and OFDM is an attractive and competitive solution for future broadband wireless systems.
因此，OFDM和MIMO技术的结合已经成为未来宽带无线通信领域最有吸引力的候选方案。
Therefore, the combination of MIMO and OFDM is an attractive and competitive solution for future broadband wireless systems.
因此，OFDM和MIMO技术的结合已经成为未来宽带无线通信领域最有吸引力的候选方案。
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