| 多径衰落信道的多重分形模型 |
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| 引用本文： | 谢波,朱世华,胡刚.多径衰落信道的多重分形模型[J].电子学报,2001,29(5):645-648. |
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| 作者姓名： | 谢波 朱世华 胡刚 |
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| 作者单位： | 西安交通大学电子与信息工程学院,西安 710049 |
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| 基金项目： | 国家自然科学基金，高等学校博士学科点专项科研项目，60072040，9569823，， |
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| 摘 要： | 本文研究多径衰落信号的多重分形性质,分析并指出了信号多重分形维数是描述无线信道传播特性的重要参数;计算了多径衰落信号的多重分形维数及其分形参数;在此基础上提出了一种新的无线信道模型;结合分形插值方法,对多径衰落信号的重构进行了研究.仿真结果表明,无线信道的多重分形模型与传统的统计模型相比更有效、更准确.
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| 关 键 词： | 多径衰落信号 信道模型 多重分形 分形插值 |
| 文章编号： | 0372-2112 (2001) 05-0645-04 |
| 收稿时间： | 2000-01-10 |
The Multifractal Model of Multipath Fading Channels |
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| XIE Bo,ZHU Shi-hua,HU Gang.The Multifractal Model of Multipath Fading Channels[J].Acta Electronica Sinica,2001,29(5):645-648. |
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| Authors: | XIE Bo ZHU Shi-hua HU Gang |
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| Affiliation: | School of Electronics and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China |
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| Abstract: | Fractal characteristic of multipath fading signal is studied in the paper which shows that multifractal dimension is a key parameter for describing the signal propagation in wireless channels.The multifractal dimension and fractal parameter are calculated.Then a novel channel model is proposed and fractal interpolation is applied to reconstruct the signals.Simulation results show that the new model outperforms the conventional statistic models in both effectiveness and accuracy. |
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| Keywords: | multipath fading signal channel model multifractal fractal interpolation |
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