Nonlinear autopilot design for endo- and exo-atmospheric interceptor with thrust-vector-control

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dc.contributor.authorHong, Ju-Hyeon
dc.contributor.authorLee, Chang-Hun
dc.date.accessioned2019-11-13T11:39:40Z
dc.date.available2019-11-13T11:39:40Z
dc.date.issued2019-06-05
dc.description.abstractThis paper proposes an autopilot design for an interceptor with Thrust-Vector-Control (TVC) that operates in the endo- and exo-atmospheric regions. The main objective of the proposed autopilot design is to ensure control performance in both atmospheric regions, without changing the control mechanism. In this paper, the characteristics of the aerodynamic forces in both atmospheric regions are first investigated to examine the issue of the conventional control mechanism at various altitudes. And then, a control mechanism, which can be applied to both atmospheric regions, is determined based on the analysis results. An autopilot design is then followed by utilizing the control mechanism and the feedback linearization control (FBLC) method. Accordingly, the proposed autopilot does not rely on changing the control mechanism depending on flight condition unlike the conventional approach as well as it can adjust the control gains automatically according to the changes of flight operating conditions. In this paper, the robustness of the proposed autopilot is investigated through the tracking error analysis and the relative stability analysis in the presence of model uncertainties. The physical meaning of the proposed autopilot is also presented by comparing to the well-known three-loop control structure. Finally, numerical simulations are performed to show the performance of the proposed method.en_UK
dc.identifier.citationHong J-H, Lee C-H. (2020) Nonlinear autopilot design for endo- and exo-atmospheric interceptor with thrust-vector-control. IEEE Transactions on Aerospace and Electronic Systems, Volume 56, Issue 1, February 2020, pp. 796-810en_UK
dc.identifier.issn0018-9251
dc.identifier.urihttps://doi.org/10.1109/TAES.2019.2921181
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/14722
dc.language.isoenen_UK
dc.publisherIEEEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectAerodynamicsen_UK
dc.subjectAccelerationen_UK
dc.subjectAttitude controlen_UK
dc.subjectMissilesen_UK
dc.subjectControl systemsen_UK
dc.subjectError analysisen_UK
dc.titleNonlinear autopilot design for endo- and exo-atmospheric interceptor with thrust-vector-controlen_UK
dc.typeArticleen_UK

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