陈晓娟,李松寒,隋吉生.一种实用的工频通信上行信号检测方法[J].电测与仪表,2012,49(4):34-37. CHEN Xiao-juan , LI Song-han , SUI Ji-sheng.Practical Signal Detection Algorithm for PFC[J].Electrical Measurement & Instrumentation,2012,49(4):34-37.
Wavelet transform is often used to detect power frequency communication signals,but the method can’t effectively restrain harmonic interferences which leads to bad reliability of automatic meter reading system based on PFC in domestic grid.In view of this situation,the method of combination of wavelet transform and Fast ICA is proposed in this paper to achieve the detection of inbound signals.The results simulated by MATLAB show that the method not only effectively suppresses harmonics interferences but also extracts power frequency communication signals.
