Innovative approaches for analysis, design and modeling ofadvanced flight vehicles are demanded in response to requirements towardsubstantial performance improvements. Although control theory isthoroughly developed, the calculus of variations and Pontryagin'sprinciple are not well suited because these methods exhibit rather poorrobustness and are hampered by the limited time available forcomputations. This paper explores the robust control technology foruncertain nonlinear systems and presents innovative design procedures toenhance the robustness for open-loop unstable systems with constraints.Utilizing the Hamilton-Jacobi theory, the developed procedures allow oneto find a straightforward avenue to design the robust controllers. A newcontrol methodology is less conservative than the known results andallows us to solve the nonlinear control problem for uncertain systems.The explored time-optimal and antiwindup techniques are studied for ahighly-manoeuvrable missile. The longitudinal and rolling flightcontrol, as well as the guidance problem, are treated and solved. Toevaluate the robustness, analytical and simulation results are performed
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