Guidance laws are designed for a near space interceptor with line-of-sight angle as input and on–off type thrust as output. The dynamics of thruster is viewed as a first-order lag with on–off working style and is integrated with the target–interceptor engagement dynamics to design bang-bang type sliding mode guidance laws. An extended state observer is designed to estimate the line-of-sight angular rate and the acceleration of target with the line-of-sight angle as a measurement. It is rigorously proved that the states of guidance system converge to a neighborhood of sliding mode in finite time and the line-of-sight angular rate converges to a neighborhood of the origin along the sliding mode in finite time under the designed guidance laws. Furthermore, in order to reduce the switching frequency of thruster, a sliding mode guidance law with hysteresis-band according to the sufficient condition for finite time convergence is proposed. Then, it is integrated with the bang-bang type sliding mode guidance law to yield a composite guidance law. Simulation results show that the extended state observer can effectively estimate the line-of-sight angular rate and the target acceleration, and the proposed sliding mode guidance laws have better performance than typical proportional guidance law.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Extended state observer-based finite-time guidance laws on account of thruster dynamics


    Beteiligte:
    Duan, Meijun (Autor:in) / Zhou, Di (Autor:in) / Cheng, Dalin (Autor:in)


    Erscheinungsdatum :

    01.09.2019


    Format / Umfang :

    15 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Finite-time convergent sliding-mode guidance law based on Extended-State-Observer

    Zhang, Denghui / Chao, Tao / Wang, Songyan et al. | IEEE | 2016


    Extended differential geometric guidance law with extended state observer

    Huang, Jingshuai / Zhang, Hongbo / Tang, Guojian et al. | IEEE | 2017



    Missile sliding mode guidance law based on extended state observer

    Zhang, Yao / Guo, Jie / Tang, Shengjing et al. | British Library Online Contents | 2015


    Finite-time ship formation control based on extended state observer

    Jun NING / Hanmin CHEN / Wei LI et al. | DOAJ | 2023

    Freier Zugriff