本文基于信息极大似然估计，采用牛顿迭代算法，建立了ICA的一种信息极大快速算法。
In this paper, proposed is the informax fast algorithm of ICA using information maximum likelihood estimation with the Newton iterate algorithm.
广义相关是解决时延估计的重要技术措施，采用极大似然加权进行时延估计时方差可达到克拉美罗界。
Generalized cross correlation is an important technical measure to solve time delay estimation problem. Time delay estimation variance can reach CRLB by using ML weighting.
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