| 采用正交小波的宽带电力线通信调制技术研究 |
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| 引用本文： | 孙增友,李依潼,耿雪莹.采用正交小波的宽带电力线通信调制技术研究[J].低压电器,2012(9):41-45. |
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| 作者姓名： | 孙增友 李依潼 耿雪莹 |
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| 作者单位： | 东北电力大学信息工程学院,吉林吉林,132012 |
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| 摘 要： | 提出一种基于正交小波的宽带电力线正交频分多路复用调制方法(OFDM),用正交小波替代传统的离散傅氏变换对OFDM系统进行优化设计,在不加保护间隔的前提下,减小系统干扰。并通过Matlab实现两种OFDM系统的仿真。仿真结果表明,优化的OFDM可显著减小多径影响,使系统子载波信道间干扰(ICI)和码间干扰(ISI)的功率值降低,提高了OFDM的综合抗干扰能力。
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| 关 键 词： | 宽带电力线载波 正交频分复用技术(OFDM) 正交小波 抗干扰能力 |
Research of Power Line Communication Modulation Technology Based on Orthogonal Wavelet Broadband |
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| SUN Zengyou
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LI Yitong
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GENG Xueying.Research of Power Line Communication Modulation Technology Based on Orthogonal Wavelet Broadband[J].Low Voltage Apparatus,2012(9):41-45. |
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| Authors: | SUN Zengyou LI Yitong GENG Xueying |
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| Affiliation: | (School of Information Engineering,Northeast Dianli University,Jilin 132012,China) |
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| Abstract: | An orthogonal frequency division multiplexing（OFDM） modulation method was presented,the conventional discrete Fourier transform was replaced with orthonormal wavelets to optimize the design of OFDM.In the premise of without guard interval,it reduces the system interference.Matlab was used to achieve the simulation of the two OFDM systems.It is shown that optimization OFDM can significantly reduce the impact of multi-path,reduce system power value of ICI and ISI and improve the comprehensive anti-jamming capability of OFDM. |
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| Keywords: | broadband power line carrier orthogoral frequency division multiplexing（OFDM） orthonormal wavelet anti-jamming capability |
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