Title :
On the use of autoregressive order determination criteria in multivariate white noise tests
Author :
Pukkila, Tarmo M. ; Krishnaiah, Paruchuri R.
Author_Institution :
Dept. of Math. Sci., Tampere Univ., Finland
fDate :
9/1/1988 12:00:00 AM
Abstract :
Testing the hypothesis of multivariate white noise is seen as the selection of the order of a multivariate autoregressive model for the observed time series. Therefore, multivariate white noise tests can be carried out by applying autoregressive order-determination criteria such as AIC, BIC, etc. It is known, for example, that the BIC criterion estimates consistently the order of an autoregression. An order-determination criterion with this property leads to a white noise test with a significance level approaching zero as n, the number of observations, increases. The order of an autoregressive moving-average model is proposed to be determined by applying this kind of white noise test. The resulting model building procedure is a generalization of the procedure proposed by G.E.P. Box and G.M. Jenkins (1970)
Keywords :
signal processing; time series; white noise; autoregressive moving-average model; autoregressive order determination criteria; estimation theory; model building procedure; multivariate white noise tests; time series; Acoustic signal processing; Acoustic testing; Autoregressive processes; Covariance matrix; Gaussian distribution; Nonlinear filters; Speech enhancement; Speech processing; Vectors; White noise;
Journal_Title :
Acoustics, Speech and Signal Processing, IEEE Transactions on