USDBL的双互协方差及双互谱密度

Bi-Co-Covariance and Bi-Co-Spectral Density for USDBL

本文计算出了上次对角双线性时序模型的输入序列与输出序列的互协方差函数和双互协方差函数，获得了该模型的互谱密度函数和双互谱密度函数，得到了一些良好的性质．

The co-covariance and bi-co-covariance of input-output series for Upper Sub-DiagonalBilinear Modeis(USDBL)are derived,and the co-spectral density and bi-co-spectral density for JSDBLmedeis are obtained. In addition,some important properties are given.