Three-dimensional adaptive fixed-time guidance law against maneuvering targets with impact angle constraints and control input saturation
2021 ◽
pp. 014233122110598
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This paper presents an adaptive fixed-time guidance law for the three-dimensional interception guidance problem with impact angle constraints and control input saturation against a maneuvering target. First, a coupled guidance model formulated by the relative motion equation is established. On this basis, a fixed-time disturbance observer is employed to estimate the lumped disturbances. With the help of this estimation technique, the adaptive fixed-time sliding mode guidance law is designed to accomplish accurate interception. The stability of the closed-loop guidance system is proven by the Lyapunov method. Simulation results of different scenarios are executed to validate the effectiveness and superiority of the proposed guidance law.
2018 ◽
Vol 41
(1)
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pp. 182-192
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2020 ◽
pp. 095441002097197
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2020 ◽
pp. 095441002096509
2016 ◽
Vol 53
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pp. 169-187
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2011 ◽
Vol 110-116
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pp. 2513-2520
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