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南阳理工学院 电子与电气工程学院, 河南 南阳 473000
Received:23 March 2019,
Accepted:13 July 2019,
Published:05 September 2019
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Ting CAO, Hua-min CHEN. Low voltage power line communication system model based on orthogonal frequency division multiplexing technology[J]. Chinese journal of liquid crystals and displays, 2019, 34(9): 928-934.
Ting CAO, Hua-min CHEN. Low voltage power line communication system model based on orthogonal frequency division multiplexing technology[J]. Chinese journal of liquid crystals and displays, 2019, 34(9): 928-934. DOI: 10.3788/YJYXS20193409.0928.
针对目前低压电力线通信技术的传输复杂性及外部噪声失真等问题,本文基于正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)调制技术模型,建立了低压电力线信道的通信传输模型,并在MATLAB软件中仿真研究了低压电力线通信系统的传输特性及抗噪声效果。研究结果表明,OFDM技术能够有效提升低压电力线通信系统的传输性能,并显著降低通信系统的噪声影响。该技术具有较好的市场应用前景及竞争力。
Aiming at the problems of transmission complexity and external noise distortion of low-voltage power line communication technology
based on the orthogonal frequency division multiplexing (OFDM) modulation technology model
the transmission model of low-voltage power line channel is established. The low-voltage power line communication system is simulated and studied in MATLAB software. The results show that OFDM can effectively improve the performance of low-voltage power line communication system and significantly reduce the noise impact of communication system. The technology has good market application prospects and competitiveness.
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