基于卷积混合的确定性信号盲分离

盲信号源服从统计独立分布（即i．i．d序列）是现在大部分基于卷积混合模型的盲分离算法的假设条件，在实际仿真中也要求有色信号在处理之前进行预自化，但对于象正弦这样的确定性信号都没有讨论。本文将针对确定性信号的盲分离问题展开讨论，并对信号进行了仿真，仿真结果表明确定信号虽不满足i．i．d序列要求，但在一定条件下仍可进行盲分离。

It is well known that signals that are i.i.d are the basic assumption that most Blind soure separation algorithms of convolutive mixture make. During the simulation, it is required that the mixed signals are prewhitened. Few articles have discussed the problem that blind source separation of the determined of under the convolutive mixture. In this article, blind sources separation of determined signals, such as single frequency signal, will be discussed. And at last, we can see that althogh determined signals can not satisfy the condition--i.i.d, these signals can also be separated, if having enough bandwith.