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| 研究生： |
徐之正 Zh-Zhen Hsu |
|---|---|
| 論文名稱： |
光束擾動之自適應控制研究 The Study on Adaptive Control of Photon Beam Fluctuation |
| 指導教授： |
葉則亮
Tse-Liang Yeh |
| 口試委員: | |
| 學位類別： |
碩士 Master |
| 系所名稱： |
工學院 - 機械工程學系 Department of Mechanical Engineering |
| 畢業學年度： | 88 |
| 語文別： | 中文 |
| 論文頁數： | 71 |
| 中文關鍵詞： | 自適應控制 、光束擾動 、系統鑑別 、數位信號處理 |
| 外文關鍵詞： | adaptive control, Photon Beam Fluctuation, System Identification, Digtal Signal Processing, FXLMS |
| 相關次數： | 點閱：13 下載：0 |
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對同步輻射的使用者或利用雷射光準直特性做實驗的人來說，光束的穩定與否，關係到其實驗結果的優劣，因此如何提供高品質穩定的光束是相當重要的。本論文主要是建立光束擾動的控制系統，試圖設計一套適應性控制器,即時地將光束線的不穩定度消除。類似消除振動與噪音的主動式控制方法，將光束的擾動視為雜訊，便可以達成對光束擾動的控制。
本論文使用FXLMS演算法，利用雷射光模擬同步輻射光束，來消除100 Hz以下的擾動。實驗結果對於弦波擾動至少可以消除大約20 dB左右，對於頻寬100 Hz的擾動大約可以消除百分之六十左右，達到預期之目標。
The adaptive feedforward controller by using FXLMS algorithm is designed to reduce random fluctuation with 100-Hz bandwidth. Experimental results demonstrate the effectiveness of the proposed method in controlling broadband photon beam fluctuation up to 60 %.
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[1] C. M. Brizard, B. G. Rodricks, and E. E. Alp, ”Dynamic phenomena studied with a CCD detector,” American Institute of Physics Conference Proceedings, no. 258, pp. 566-74, 1992.
[1] C. M. Brizard, B. G. Rodricks, and E. E. Alp, ”Dynamic phenomena studied with a CCD detector,” American Institute of Physics Conference Proceedings, no. 258, pp. 566-74, 1992.
[1] C. M. Brizard, B. G. Rodricks, and E. E. Alp, ”Dynamic phenomena studied with a CCD detector,” American Institute of Physics Conference Proceedings, no. 258, pp. 566-74, 1992.
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