Time-varying Analysis Model for Monitoring Data for Dam Storage Period
Ziyang Li · Hydropower Automation and Dam Monitoring · 2009
Considering the unstable monitoring data and the changing dam behavior in the storage period,the forgetting factor is introduced into the traditional statistical model for solving the model parameters,and a forgotten matrix is established to give prominence to the contributions of recent data.Then the time-varying analysis model is set up for monitoring data for the dam storage period.Case analysis shows that the model parameters can be periodically updated with the changes of the storage state,and the accuracy of fitting and forecasting is better than that of the traditional statistical model,so it is more suitable for analyzing the monitoring data for the storage period.