Article contents
An innovation approach to non-Gaussian time series analysis
Published online by Cambridge University Press: 14 July 2016
Abstract
The paper shows that the use of both types of random noise, white noise and Poisson noise, can be justified when using an innovations approach. The historical background for this is sketched, and then several methods of whitening dependent time series are outlined, including a mixture of Gaussian white noise and a compound Poisson process: this appears as a natural extension of the Gaussian white noise model for the prediction errors of a non-Gaussian time series. A statistical method for the identification of non-linear time series models with noise made up of a mixture of Gaussian white noise and a compound Poisson noise is presented. The method is applied to financial time series data (dollar-yen exchange rate data), and illustrated via six models.
Keywords
MSC classification
- Type
- Time series analysis
- Information
- Journal of Applied Probability , Volume 38 , Issue A: Probability, Statistics and Seismology , 2001 , pp. 78 - 92
- Copyright
- Copyright © Applied Probability Trust 2001
References
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