A New Optimal Guidance Law with Impact Time and Angle Constraints Based on Sequential Convex Programming

Abstract

This paper proposed an optimal time-varying proportional navigation guidance law based on sequential convex programming. The guidance law can achieve the desired impact angle and impact time with look angle and lateral acceleration constraints. By treating the multiconstraints’ guidance problem as an optimization problem and changing the independent variable to linearize the problem and constraints, the original nonlinear and nonconvex problem is transformed into a series of convex optimization problem so that it can be quickly solved by sequential convex programming. Numerical simulations compared to nonlinear programming and traditional analytical guidance law demonstrate the effectiveness and efficiency of the proposed algorithm. Finally, the proposed guidance law is verified to satisfy different impact time periods and impact angle constraints.

Computational Optimal Impact Angle Control Guidance Laws Weighted by Arbitrary Functions

“…The main goal of designing a guidance law for an interception missile is to obtain a minimum miss distance with respect to a given target. However, to enhance the effect of kill probability, modern tactical missiles are expected not only to intercept the target but also to achieve a desired terminal impact angle [1][2][3]. Driven by these practical needs, intercept angle control guidance laws have been growing rapidly and become an important research topic.…”

“…In addition, the proposed guidance law can be easily extended to the dynamic lag system. The real-time computational capacity of the proposed approach is evaluated on a microprocessor (2) The results presented are the first attempts in literature to introduce piecewise weighting functions.…”