假设信号是近似正态分布的，就可以从相关矩阵的行列式计算出每个波段的条件信息量。

If signals are supposed to be normally distributed, then by computing determinants of correlation matrices, conditional information of each channel signal can be obtained.

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将行列式的值、矩阵的秩、齐次线性方程组的解等知识运用于向量组线性相关性判定，归纳出六种判定向量组线性相关性的方法。

The judging methods of the vectors group related dependence from determinant values, rank of matrix, solution of system of linear equations etc were studied.

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