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OFDM的原理及技术特点 被引量:10

Basic theory and characteristic of OFDM
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摘要 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。本文简要介绍了OFDM的发展概况和基本原理,以及调制、同步等几个关键技术,最后概述了OFDM技术的优点及不足之处。 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.This paper briefly introduces the development ,basic principles and key techniques such as modulation, synchronization of OFDM.Then outlines the merit and defect of OFDM.
作者 阎世梁
出处 《信息技术》 2004年第10期29-31,共3页 Information Technology
关键词 正交频分复用 码间干扰 同步 峰均比 OFDM inter-symbol-interference(ISI) synchronization PAPR
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  • 1Yang B;Letaief K B C;Roger S.Timing recovery for OFDM transmission, IEEE JSAC ,2000; 18(11) :2278- 2291. 被引量:1
  • 2Stefan H. Müller - Weinfurrner. On the Optimality of Metrics for Coarse Frame Synchronization in OFDM: A Comparison. The Ninth IEEE International Symposium on Personal,Indoor,and Mobile Radio Communications,1998; 2:533 -537. 被引量:1
  • 3Speth, M ; Feehtel, S ; Foek, G ; Meyr, H Optimum receiver design for OFDM -based broadband transmission. Ⅱ . A caae atudy. IEEE Transactions on Communicationa,2001 ;49(4) :571 - 578. 被引量:1
  • 4Yun Hee Kim;Young Kwon Hahm;Hye Jung Jung. An Efficient Frequency Offset Estimator for Timing and Frequency Synchronization in OFDM Systems. 1999 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing, 1999:580- 583. 被引量:1
  • 5Dong Kyu Kim;Sang Hyun Do;Hong Bae Cho;Hyung Jin Chol;Di Bum Kim A new joint algorithm of symbol timing recovery and sampling clock adjustment for OFDM systems, IEEE Transactions on Consumer Electronics,1998;44(3) : 1142-1149. 被引量:1

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