本文旨在探討追蹤器的設計方法。數位取樣系統以觀測器為基礎的提升型數位再設計追蹤器首先在本文中被提出。接下來利用遺傳基因演算法來改善系統參數，使原系統在不適合的系統參數下仍然可以大幅改善追蹤效能。最後，以多目標遺傳演算法為基礎的數位再設計方法被發展來計算具狀態限制的取樣週期，並且針對一個串接系統的混合控制重建一個低增益的脈衝振幅調變數位控制器。各章節使用相關的例子，並比較系統改善前後的情況。

Tracker design methodologies for output-reference tracking scheme are first proposed in this thesis. An observer-based digital controller using the lifted digital redesign for sampled-data system is first presented. Then, the digital-redesign-based evolutionary programming (EP) is developed to obtain a well performance within unaccommodated system parameters. Finally, multi-objective evolutionary program (MOEP) - based digital redesign method is developed to determine the sampling period under the state constraints and to reconstruct the low-gain pulse amplitude modulated digital controller for the hybrid control of the cascaded system. Some illustrative examples are presented to compare the advantages and disadvantages between these.

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