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正交多载波调制(OFDM)技术及其应用
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摘要:
本文首先介绍了正交多载波调制(OFDM)技术适用于高速数据传输的原理,着重讨论了OFDM基于FFT算法在基带实现多载波调制的原理和OFDM中的同步问题,最后对OFDM在宽带无线数据传输中的应用作了初步展望。
关键词:  正交多载波调制 数据传输 多径时延扩展
DOI:10.3969/j.issn.1001-893X.
基金项目:
OFDM Technology and Application
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Abstract:
The principle of Orthogonal Frequency Division Modulation(OFDM) technology which is adaptive to high-data-rate transmission is summarized in this paper. And the focus is on the principle for implementing OFDM system with FFT in baseband and the solutions for carrier and symbol synchronization in OFDM. Then we end this paper with OFDM's application status in quo and its prospect in new information systems.
Key words:  Data Transmission,Multicarrier OFDM Multipath Time Delay Carrier and Symbol Synchronization Cyclic Extention
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