In this paper, a general guidance method based on a receding horizon control technique and online trajectory optimization is proposed for various interception problems. In this method, the interception problem is defined as an optimal control problem by full dynamics of the interceptor and the current position and velocity of the target in the three-dimensional space. By solving the interception optimal control problem for various objective and constraint functions, integrated guidance and control commands are generated online during interception. To find the closed-loop and state-dependent solution, the interception optimal control problem is defined in a receding horizon control framework. To quickly solve the interception problem, the direct trajectory optimization method, which is a combination of a differential flatness concept, b -spline curves, and nonlinear programming, is used. To demonstrate the implementation of the proposed method, a numerical example of interception of a maneuvering target by a missile is presented. The proposed optimal guidance method can be applied for integrated guidance and nonlinear control of the interceptors in various interception problems in aerospace engineering and robotics.


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    Title :

    Optimal Guidance Based on Receding Horizon Control and Online Trajectory Optimization


    Contributors:

    Published in:

    Publication date :

    2011-12-17


    Size :

    82013-01-01 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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