| Summary: | 碩士 === 中華大學 === 電機工程學系 === 86 === This dissertation presents the F-16 lateral auto-pilot Command Generator Tracker (CGT) designed by the Linear Exponential Quadrati aussian with Loop Transfer rECOVERY (LEQG/LTR) methodology. The LEQG/LTR optimal controller, providing additional parameter "Q" for the control input weightimg matrix, consists of both state-feedback and feedforward controllers. Based on the original state weighting matrix "Q" and control input weighting matrix "R", the additional parameter provides a systematic adjustment is in the cross terms of the control input weighting martix "R" which is the less sense for us to select. If the positive value of the parameter "Q" is selected, we can improve the high gain problem with increasing the effective control input weighting matrix R. The performance of the system may be even better because of the cross terms of the matrix R. AII the time-domain, frequency-domain and robust design techniques are unified into one design procedure which is derived in this dissertation Applying the procedure to both methods, the performance of LEQG/LTR method is better than that of the traditional Linear Quadratic Gaussian with Loop Transfer Recovery (LQG/LTR)
Owing to some restrictions of using the LQG/LTR and LEQG/LTR methods, we propose and present the integration of H2/H methodology This method is a powerful method for designing the robust multivariable feedback control system. The optimal controller, consisting of both H2 and H synthesis theory, utilizes the H2 synthesis as a first cut to get a sense for what level of performance is achievable. The H synthesis theory, with its performance criterion based on the outcome of the first cut H2 design, is used to do the final work. The integration of H2/H methodology can combine the good properties of using H2 or H synthesis theory individually.
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