机构地区: 东南大学机械工程学院
出 处: 《东南大学学报(自然科学版)》 1991年第5期81-87,共7页
摘 要: 木文讨论了双线时间序列BL(n,m,p,l)模型的平稳性和可逆性,给出了该模型渐近平稳和可逆的充分条件,同时也给出了方差和自协方差的表达式。其自相关函数的Yule-Walker方程与ARMA(n,m)模型具有相同的结构。 The stationarity and invertibility of bilinear time scries model BL(n, m, p, l) is considered in this paper. The sufficient conditions for asymptotic stationarity and invertibility of the model are derived and the expressions of the variance and autovariance are also obtained. The Yule-Walker's equation of the function of autocovariance of the model is the same as that of an ARMA (n, m)model.