一种消除BSS 不确定性的新方法

针对盲源分离技术处理通信信号时会出现域不确定性的问题,提出一种新型的消除BSS不确定性的方法.通过分析BSS模型及其产生不确定性的原因,利用相邻信号帧交叠部分的相似性,进行信号重组,同时消除幅度不确定性、相位不确定性和帧不确定性;并分别采用人工合成的信号和人类语音信号进行验证.仿真结果表明:该算法很好地解决了不确定性产生的影响,达到了消除不确定性的目的.

A New Method of Eliminating BSS Uncertainty

Aiming at the region uncertainty of blind source separation (BSS) in dealing with communication signal, put forwards a new method for eliminating BSS uncertainty. Through analyzing BSS model and reason of uncertainly, use similarity of neighbor signal frame overlap, carry out signal recombination, eliminate amplitude uncertainty, phase uncertainty and frame uncertainty at the same time; then, use validate method by artificial synthesis signal and artificial voice signal. The simulation results show that: the method can eliminate influence of uncertainty or even reach the goal of eliminating uncertainty.