CAJ | 학술논문

在时相调制系统中引入了 ICA(独立成分分析)技术,根据多个传感器端口接收的多路时相调制信号的混叠信号,采用快速 ICA算法将其分离成相对独立的几个部分,借此提取时相调制信号的相位突变特征,实现了对时相调制信号的检波解调。仿真结果表明,ICA技术不仅能够提取时相调制信号的相位突变特征,而且效果明显。
재시상조제계통중인입료 ICA(독립성분분석)기술,근거다개전감기단구접수적다로시상조제신호적혼첩신호,채용쾌속 ICA산법장기분리성상대독립적궤개부분,차차제취시상조제신호적상위돌변특정,실현료대시상조제신호적검파해조。방진결과표명,ICA기술불부능구제취시상조제신호적상위돌변특정,이차효과명현。
In time-phase modulation systems,the aliasing signals of multi-channel time-phase modulation signals received at the multiple sensor ports are separated into relatively independent segments by adopting the fast Independent Component Analysis (ICA)algorithm so that their phase abrupt features can be extracted and their detection and demodulation accomplished.Simu-lation results indicate that this technique can extract the phase abrupt features of time-phase modulation signals with distinct effects.