For Identical modes, the singular values are exactly one, and the singular values drop to zero as the modes move away from each other.
For Identical modes, the singular values are exactly one, and the singular values drop to zero as the modes move away from each other.
当两组讯号次空间相同时，奇值等于一：当二者频率渐远时，奇值则随之下降趋于零。