Based on the single-channel mixed signal's separation technology and the layered principles

a novel blind source separation (BSS) algorithm of single mixed signal is proposed.its characteristic does not need to use the prior knowledge.How to make the layered work of this original signal? It can be separated into many layers? Based on single-channel mixed-signal layered technique and joins a reference signal to this original signal

the above question has found the very good answer.And the equal length layered technique of using improved cyclic convolution decomposition

and the gain independent sub-band functions technology are studied too.Using these independent sub-functions

it can be expanded become a multi-dimensional signal that the original signal

and realized its blind separation.Finally through the separation experiments confirmed this method validity and the feasibility.