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基于PPDA技术的电力线宽带载波抗扰通信方法

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电力线宽带载波通信干扰导致载波间信号频率偏移增加,载波抗扰能力下降.为此,提出基于PPDA技术的电力线宽带载波抗扰通信方法.模拟载波通信信道上的背景噪声,结合改进变分模态分解算法预处理噪声信号.通过调节正弦波幅度,过滤宽带载波干扰.构建PPDA载波幅度调制框架,实现载波幅度智能化调制,避免子信息流之间互相干扰.实验结果表明,该方法的信号接收点比较集中,没有出现大幅度信号频率偏移现象,最终接收的信号强度达到360 dB,说明应用该方法通信抗扰能力强.
Power lines broadband carrier anti-interference communication method based on PPDA technology
The interference of broadband power line carrier communication leads to an increase in frequency offset between carriers and a decrease in carrier anti-interference ability.Therefore,a power line broadband carrier anti-interference communication method based on PPDA technology is proposed.Simulate the background noise on the carrier communication channel,and combine it with an improved variational mode decomposition algorithm to preprocess the noise signal.Filter out broadband carrier interference by adjusting the amplitude of the sine wave.A PPDA carrier amplitude modulation framework is constructed to achieve intelligent modulation of carrier amplitude and avoid mutual interference between sub information flows.The experimental results show that the signal reception points of this method are relatively concentrated,and there is no significant signal frequency shift phenomenon.The final received signal strength reaches 360 dB,indicating that the communication anti-interference ability of this method under application is strong.

PPDA technologycarrier anti-interference communicationsignal frequency offsetimproved variational modal decomposition

戴文骏、王康、夏凌、杨凯

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国网江苏省电力有限公司常州供电分公司,江苏 常州 213000

PPDA技术 载波抗扰通信 信号频率偏移 改进变分模态分解

2025

电子设计工程
西安三才科技实业有限公司

电子设计工程

影响因子:0.333
ISSN:1674-6236
年,卷(期):2025.33(2)