Yeh, Fu-KuangFu-KuangYehCheng, Kai-YuanKai-YuanChengLI-CHEN FU2009-02-252018-07-062009-02-252018-07-06200410636536http://ntur.lib.ntu.edu.tw//handle/246246/141076https://www.scopus.com/inward/record.uri?eid=2-s2.0-7744239572&doi=10.1109%2fTCST.2004.833622&partnerID=40&md5=79b12103bb2781f2e4b3175c3d8f1467In this brief, we propose a variable structure based nonlinear missile guidance/autopilot system with highly maneuverable actuators, mainly consisting of thrust vector control and divert control system, for the task of intercepting of a theater ballistic missile. The aim of the present work is to achieve bounded target interception under the mentioned 5 degree-of-freedom (DOF) control such that the distance between the missile and the target will enter the range of triggering the missile's explosion. First, a 3-DOF sliding-mode guidance law of the missile considering external disturbances and zero-effort-miss (ZEM) is designed to minimize the distance between the center of the missile and that of the target. Next, a quaternion-based sliding-mode attitude controller is developed to track the attitude command while coping with variation of missile's inertia and uncertain aerodynamic force/wind gusts. The stability of the overall system and ZEM-phase convergence are analyzed thoroughly via Lyapunov stability theory. Extensive simulation results are obtained to validate the effectiveness of the proposed integrated guidance/autopilot system by use of the 5-DOF inputs. © 2004, The Institute of Electrical and Electronics Engineers, Inc. All rights reserved.application/pdf249543 bytesapplication/pdfen-USAttitude control; bounded target interception; nonlinear system; quaternion; variable structureActuators; Computer simulation; Control system synthesis; Degrees of freedom (mechanics); Electronic guidance systems; Equations of motion; Lyapunov methods; System stability; Attitude control; Bounded target interception; Lypunov stability theory; Manueverable actuators; Thrust vector control; Variable structure; Nonlinear control systemsjournal article10.1109/TCST.2004.8336222-s2.0-7744239572http://ntur.lib.ntu.edu.tw/bitstream/246246/141076/1/25.pdf