Three-Dimensional Impact Time and Angle Control Guidance Based on MPSP

Yang Li,Hao Zhou,Wanchun Chen

doi:10.1155/2019/5631723

Yang Li, Hao Zhou + Show 1 more

Open Access

https://doi.org/10.1155/2019/5631723

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Abstract

A new nonlinear guidance law for air-to-ground missile cooperation attacks is proposed in this paper. This guidance law enables missiles with different initial conditions to attack targets simultaneously, and it can also precisely satisfy the terminal impact angle conditions in both flight-path angle and heading angle. The guidance law is devised using the model predictive static programming (MPSP) method, and the control saturation constraint is incorporated in the MPSP algorithm. The first-order-lag acceleration of the missile is taken as the state variable to realize the convergence of the terminal acceleration to zero. Moreover, a collision avoidance strategy for three-dimensional missile cooperative flight is proposed. The simulation results show that the guidance law can make the missiles hit the target accurately at the same time with the ideal impact angles and can realize the control saturation constraints of the missiles. This can increase the attack effects and is significant for collaborative attacks.

Highlights

When a missile strikes a target, its damage to the target can increase at a particular attack angle
The following are the main contributions of this paper: (1) The control saturation constraint is considered in the model predictive static programming (MPSP) algorithm, the specific derivation process is given, and the effectiveness of the algorithm is verified by simulation
A new guidance law for air-to-ground missile cooperation attacks is presented based on the MPSP technique, which can simultaneously constrain the impact time and angle

Summary

Introduction

When a missile strikes a target, its damage to the target can increase at a particular attack angle. A guidance law based on sliding mode control, which enables a missile to hit a stationary target at a given impact time, was proposed by Kumar and Ghose in [12]. We have proposed a three-dimensional impact time and impact angle control guidance law to make the cooperation attack mission successful, based on MPSP. (1) The control saturation constraint is considered in the MPSP algorithm, the specific derivation process is given, and the effectiveness of the algorithm is verified by simulation (2) A collision avoidance strategy for three-dimensional missile cooperative flight is derived, and its effectiveness is verified (3) The proposed guidance law achieves threedimensional impact time and angle control simultaneously, and it is an effective means of cooperation attack.

Problem Statement

Implementation of the Guidance Law

Numerical Simulations

Conclusions