Background Noise Suppression Method of Narrowband Power Line Communication Channel
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.
narrowband power line communicationcommunication channelbackground noisesuppression method
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