Parameter estimation for exponential signals by the quadratic interpolation

Rong Ching Wu, Tai Yi Yang, Jong Ian Tsai, Ting Chia Ou

研究成果: Conference contribution

摘要

This paper offers a complete method to find the exact frequency, damping, amplitude, and phase of the exponential molds. A simulated signal is taken to fit the real one. When this simulated signal is equal to the real one, the parameters of the simulated signal are identical to the real values. This method includes three major steps, initial value setting, gradient method, and quadratic interpolation. In initial value setting, this method analyzes the mold parameter with the two highest amplitudes of each mold, and the precise values will be found. The difference between simulated and practical signals could be expressed as a least mean square problem. The gradient method provides the initial condition for the quadratic interpolation. The minimum error search is accomplished by the quadratic interpolation, which could improve the search efficiency and reduce iteration time. After a few iterations, the method will obtain the exact harmonic parameters.

原文English
主出版物標題Proceedings of the 4th IASTED Asian Conference on Power and Energy Systems, AsiaPES 2008
頁面93-97
頁數5
出版狀態Published - 2008
事件4th IASTED Asian Conference on Power and Energy Systems, AsiaPES 2008 - Langkawi, Malaysia
持續時間: 2008 4月 22008 4月 4

出版系列

名字Proceedings of the 4th IASTED Asian Conference on Power and Energy Systems, AsiaPES 2008

Conference

Conference4th IASTED Asian Conference on Power and Energy Systems, AsiaPES 2008
國家/地區Malaysia
城市Langkawi
期間08-04-0208-04-04

All Science Journal Classification (ASJC) codes

  • 能源工程與電力技術

指紋

深入研究「Parameter estimation for exponential signals by the quadratic interpolation」主題。共同形成了獨特的指紋。

引用此