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盲信号分离的依据通常是信号的独立性或利用它们的高阶累积量。考虑了双通道的盲分离问题 ,提出了一种基于相关函数的盲分离准则。证明了在源信号不相关的条件下 ,可以实现源信号的盲分离。并给出了一种可直接求解二次方程组的盲分离算法。
Blind signal separation is usually based on the independence of the signals or their use of higher-order cumulants. Considering the two-channel blind separation problem, a blind separation criterion based on correlation function is proposed. It is proved that the blind separation of the source signal can be achieved under the condition that the source signal is irrelevant. A blind separation algorithm for solving quadratic systems is given.