adj.（趋于）改变的，变质的，使体质逐渐康复的
n.变质剂，体质改善疗法
The more alterative, the more difficult the choice.
选择越多, 愈难抉择.
This paper propose a novel alterative step LMS auto - adapted filter algorithm based on mean squared - error estimation.
介绍了一种基于均方误差估计的新变步长LMS自适应滤波算法.
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