控制系統的參數優化問題的目的是使目標函數能比較確切地反映系統的特性，而且又能使計算簡單。利用MATLAB 的優化控制工具箱，選取基于“ITSE”(integral of time weighted squared errors)準則的目標函數，從仿真實驗可以看出“ITSE”準則確實存在局限性。最后基于最優控制理論提出一種適用于控制系統參數尋優的新的目標函數，并結合仿真結果說明了所給出的新的目標函數使得控制系統的時域性能指標（超調量和調節時間）都得到很大的改善。
關鍵詞：ITSE；目標函數；參數優化
Abstract：The parameter optimization of control systems always refers to different objective functions. The selected objective function should exactly reflect the characteristic of the control system while making the computation easy. In this paper we use optimization toolbox in Matlab confirm that "ITSE" principle has some problems while using it as our objective function. By the means of analysis based on optimization control theory, we propose a new objective function, which improve the time domain performance evaluation (such as overshootand adjustment time).
Key Words：ITSE; Objective function; Parameter optimization