Channel estimation is the key technique to implement OFDM system, and is also the hotspot of research.
信道估计是实现OFDM系统的关键技术之一，也是目前研究热点。
This paper mainly conducts research on the application of LDPC-OFDM system in wireless data transmission.
本文研究了LDPC - OFDM系统用于无线数据传输中的具体实现问题。
On the base of analysis of power line channel and OFDM system, research is focused on the channel estimation algorithm.
在对电力线和OFDM系统分析的基础上，重点研究了信道估计算法。
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。
This dissertation focused on MIMO-OFDM system and made a thorough research on the key theories and technologies including channel estimation and dedicated reference signal design.
本论文对MIMO - OFDM系统物理层的若干关键理论和技术进行了深入研究，包括：信道估计、专用导频设计等问题。
At present, realizing signal process of OFDM with modern digital signal process in order to receive good system performances is a hot research problem.
利用现代数字信号处理手段实现OFDM的信号处理以得到良好的系统性能是目前的研究热点问题。
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。
Chapter 5 focuses on the primary research of OFDM-CDMA system and discusses the realization of three type OFDM-CDMA systems based on the Software Radio platform.
第五章针对OFDM—CDMA系统进行了初步研究，在软件无线电平台上探讨三种OFDM—CD MA系统的实现。
In chapter 4 relatively all-around research on channel estimate is investigated and a simple LMMSE channel estimate scheme of OFDM system based on Software Radio is put up.
第四章对OFDM系统的信道估计技术进行了比较全面的研究，并提出了软件无线电平台OFDM传输系统中的简单lmmse信道估计器的设计方案。
The final chapter gives the summary of this dissertation and emphasizes the valuable research directions for OFDM wireless system with relaying technology.
论文的最后一章对全文的内容做了总结，并给出了基于OFDM技术的无线中继网络的研究热点。
So the research on how to effectively reduce the PAPR of the OFDM system is quite meaningful.
因此，研究如何有效地降低OFDM系统的PAPR则具有非常重要的意义。
So the research on how to effectively reduce the PAPR of the OFDM system is quite meaningful.
因此，研究如何有效地降低OFDM系统的PAPR则具有非常重要的意义。
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