An extended Kalman filter based generalized state estimation approach is presented in this paper for accurately estimating the states of incoming high-speed targets such as ballistic missiles. A key advantage of this nine-state problem formulation is that it is very much generic and can capture spiraling as well as pure ballistic motion of targets without any change of the target model and the tuning parameters. A new nonlinear model predictive zero-effort-miss based guidance algorithm is also presented in this paper, in which both the zero-effort-miss as well as the time-to-go are predicted more accurately by first propagating the nonlinear target model (with estimated states) and zero-effort interceptor model simultaneously. This information is then used for computing the necessary lateral acceleration. Extensive six-degrees-of-freedom simulation experiments, which include noisy seeker measurements, a nonlinear dynamic inversion based autopilot for the interceptor along with appropriate actuator and sensor models and magnitude and rate saturation limits for the fin deflections, show that near-zero miss distance (i.e., hit-to-kill level performance) can be obtained when these two new techniques are applied together. Comparison studies with an augmented proportional navigation based guidance shows that the proposed model predictive guidance leads to a substantial amount of conservation in the control energy as well.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Generalized State Estimation and Model Predictive Guidance for Spiraling and Ballistic Targets


    Contributors:

    Published in:

    Publication date :

    2013-10-16


    Size :

    22 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






    Comparison Between Three Spiraling Ballistic Missile State Estimators

    Kim, Jinwhan / Vaddi, S. / Menon, P. et al. | AIAA | 2008


    Generalized estimation and predictive guidance for evasive targets

    Dwivedi, Prasiddha / Bhale, Prashant / Bhattacharyya, Abhijit et al. | IEEE | 2016


    Guidance Law Against Spiraling Target

    Rusnak, Ilan / Peled-Eitan, Liat | AIAA | 2016