| 正交频分复用(OFDM)技术及其应用 |
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| 引用本文： | 彭宏,李瑞麟. 正交频分复用(OFDM)技术及其应用[J]. 浙江工业大学学报, 2003, 31(3): 247-251 |
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| 作者姓名： | 彭宏 李瑞麟 |
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| 作者单位： | 浙江工业大学,信息工程学院,浙江,杭州,310032 |
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| 基金项目： | 浙江省自然科学基金 (6 0 2 0 91 ) |
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| 摘 要： | 正交频分复用技术是近年来发展起来的新技术 ,在高速无线数据传输领域有很大的应用前景。文章在分析和总结相关文献的基础上 ,介绍了正交频分复用 (OFDM)技术的发展历史 ,讨论了正交频分复用技术的基本原理和实现方法。通过分析表明 ,在高速无线通信中 OFDM对于消除符号间干扰 (ISI) ,降低系统的复杂度等方面具有很大优势。最后介绍了在数字音频广播 (DAB)和数字用户环路技术 (x DSL )中正交频分复用技术的典型应用 ,并展望了正交频分复用技术的发展趋势
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| 关 键 词： | 正交频分复用 FFT/IFFT 高速数字通信 |
| 文章编号： | 1006-4303(2003)03-0247-05 |
| 修稿时间： | 2002-03-25 |
Orthogonal frequency division multiplexing technology (OFDM) and its application |
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| PENG Hong,LI Rui|lin. Orthogonal frequency division multiplexing technology (OFDM) and its application[J]. Journal of Zhejiang University of Technology, 2003, 31(3): 247-251 |
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| Authors: | PENG Hong LI Rui|lin |
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| Abstract: | Orthogonal frequency division multiplexing is a new technology developed in recent years, with a good application future in the field of high|speed wireless communications. Based on related materials, the history of the OFDM technology is presented in the paper. And the principle and implementation of orthogonal frequency division multiplexing (OFDM) is discussed. On the basis of analyzing, the OFDM technology has many advantages in preventing intersymbol interference (ISI) and reducing complexity in high|speed data communications. In the end, digital audio broadcasting (DAB) technology and digital loop (xDSL) technology are given as the two typical applications in the field of high-speed wireless communications, and the developing direction of OFDM is forecasted. |
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| Keywords: | OFDM FFT/IFFT high|speed digital communications |
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