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論文名稱 Title |
n 階適應積分可變結構微分估測器之設計 Design of the nth Order Adaptive Integral Variable Structure Derivative Estimator |
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系所名稱 Department |
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畢業學年期 Year, semester |
語文別 Language |
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學位類別 Degree |
頁數 Number of pages |
78 |
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研究生 Author |
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指導教授 Advisor |
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召集委員 Convenor |
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口試委員 Advisory Committee |
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口試日期 Date of Exam |
2009-01-12 |
繳交日期 Date of Submission |
2009-01-17 |
關鍵字 Keywords |
適應控制、積分可變結構控制器、微分估測、李亞普諾夫穩定理論、白雜訊 adaptive control, derivative estimator, white noise, Lyapunov stability theorem, integral variable structure controller |
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統計 Statistics |
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中文摘要 |
本論文乃是根據李亞普諾夫穩定性理論 (Lyapunov Theorem),提出n階適應積分可變結構微分估測器(AIVSDE)之設計方法。文中所設計之微分估測器不僅改善現有之AIVSDE,而且可用來估測具有n+1階有界微分且連續之平滑訊號的n次微分。分析結果顯示出調整一些參數可以幫助輸入含有高頻雜訊的微分估測器。在估測結構中,使用適應性演算法追蹤未知輸入訊號上界之要求。本論文可以保證微分估測器的穩定性,並與近年來提出高階順滑模態控制法之微分估測器比較模擬之準確性。 |
Abstract |
Based on the Lyapunov stability theorem, a methodology of designing an nth order adaptive integral variable structure derivative estimator (AIVSDE) is proposed in this thesis. The proposed derivative estimator not only is an improved version of the existing AIVSDE, but also can be used to estimate the nth derivative of a smooth signal which has continuous and bounded derivatives up to n+1. Analysis results show that adjusting some of the parameters can facilitate the derivative estimation of signals with higher frequency noise. The adaptive algorithm is incorporated in the estimation scheme for tracking the unknown upper bounded of the input signal as well as their's derivatives. The stability of the proposed derivative estimator is guaranteed, and the comparison between recently proposed derivative estimator of high-order sliding mode control and AIVSDE is also demonstrated. |
目次 Table of Contents |
List of Figures iv List of Table viii Chapter 1 Introduction 1 1.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Brief Sketch of the Thesis . . . . . . . . . . . . . . . . . . . . . 3 Chapter 2 Design of the First Order AIVSDE 4 2.1 Design of the First Order AIVSDE . . . . . . . . . . . . . . . . 4 2.2 Analysis of System’s Performance in the Presence of Noise . . 7 Chapter 3 Design of the Second Order AIVSDE 14 3.1 Design of the Second Order AIVSDE . . . . . . . . . . . . . . 14 3.2 Analysis of System’s Performance in the Presence of Noise . . 24 Chapter 4 Design of the nth Order AIVSDE 30 Chapter 5 Simulations 41 Chapter 6 Conclusions 61 Bibliography 61 |
參考文獻 References |
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