Adaptive turbulence compensation for aircraft flight control

In this paper, a set of adaptive turbulence compensation techniques are investigated for aircraft flight control systems with different control gain matrices A(x), for which the multivariable adaptive disturbance rejection problems are formulated: one is for a nonsingular A(x), and one is for a singular A(x). Two unmatched disturbance rejection control design problems are addressed for the proposed aircraft turbulence compensation study: one with static feedback linearization under a direct control relative degree condition, and one with dynamic feedback linearization under an input extension control relative degree condition. For each problem, both nominal and adaptive turbulence compensation designs are developed for aircraft systems with known parameters and with unknown parameters, respectively. A typical aircraft application with turbulence disturbances is studied by a specific simulation study.

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