Abstract
The time-varying series model whose white-noise standard deviation varies with time is researched. A method for determining the function forms of white-noise standard deviation, autoregressive and moving average coefficients is established. The least square method and the maximum likelihood method are used respectively to determine the parameters. The prediction formula and its error estimation are also established. Its regression and time-varying autoregression model are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 353-357 |
| Number of pages | 5 |
| Journal | Jixie Qiangdu/Journal of Mechanical Strength |
| Volume | 28 |
| Issue number | 3 |
| State | Published - Jun 2006 |
Keywords
- Non-stationary series
- Prediction
- Time-varying autoregression
- Time-varying parameter
- Time-varying series
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