同义词
1)spectral covariance,频谱协方差2)spectrum's maximum variance,频谱方差极大值3)bi-co-covariance/co-spectral density,双互协方差/互谱密度4)generalized fractional lower-order covariance spectrum,广义分数低阶协方差谱5)fractional lower order covariance spectrum,分数低阶协方差谱6)improved covariance spectrum estimation,改进协方差谱估计法
