Extracted eigenvector is compressed by K-L transform.

运用K - L变换对已提取的特征向量进行降维。

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The research result shows that the method of the diagonal slice of the normalized bispectrum magnitude and K-L transform is an effective method for extracting features from Chinese pulse signals.

研究结果表明，归一化双谱对角切片与K - L变换相结合的方法是提取中医脉象信号特征的有效方法。

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