窄带电力线通信信道背景噪声抑制方法
Background Noise Suppression Method of Narrowband Power Line Communication Channel
赵化君1
作者信息
- 1. 东方电子股份有限公司,山东 烟台 264000
- 折叠
摘要
常规的通信信道背景噪声抑制方法以通信信号变换为主,重构信号仍残留了脉冲噪声,影响噪声抑制效果.因此,设计了窄带电力线通信信道背景噪声抑制方法.提取电力线通信信道背景噪声的衰减特征,根据背景噪声的信号频率响应、衰减函数的变化情况,确定电力线上的负载分布,确保信号传输效果.构建窄带电力线通信信道背景噪声抑制模型,根据背景噪声的类型、强度、分布等情况,生成不同的抑制条件,确保背景噪声的抑制效果.抑制通信信道背景噪声的杂波分量,调制背景噪声的杂波相位与频率,增加背景噪声信号带宽,从而满足背景噪声的抑制需求.采用仿真实验,验证了该方法的噪声抑制效果更佳,能够应用于实际生活中.
Abstract
The conventional background noise suppression method of the communication channel mainly adopts the communication signal transformation,and the reconstructed signal still remains the pulse noise,which affects the noise suppression effect.Therefore,the background noise suppression method of the narrow-band power line communication channel is designed.The attenuation characteristics of background noise of power line communication channel are extracted,and the load distribution on power line is determined according to the change of frequency response and attenuation function of background noise signal to ensure the signal transmission effect.The background noise suppression model of narrowband power line communication channel is constructed to generate different suppression conditions according to the type,intensity and distribution of background noise to ensure the suppression effect of background noise.Inhibit the background noise noise component of the communication channel,modulate the background noise noise phase and frequency,increase the background noise signal bandwidth,so as to meet the requirements of background noise suppression.Simulation experiments are used to verify that the method has better noise suppression effect and can be applied in real life.
关键词
窄带电力线通信/通信信道/背景噪声/抑制方法Key words
narrowband power line communication/communication channel/background noise/suppression method引用本文复制引用
出版年
2024
NETL
NSTL
万方数据