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Complexity
Volume 2017, Article ID 2750172, 19 pages
https://doi.org/10.1155/2017/2750172
Research Article

Terminal Guidance Law for UAV Based on Receding Horizon Control Strategy

1School of Mechatronical Engineering, Beijing Institute of Technology, No. 5, Zhongguancun South Street, Beijing 100081, China
2Beijing Electro-Mechanical Engineering Institute, No. 40 Yungangbeili, Fengtai, Beijing 100074, China

Correspondence should be addressed to Chengwei Yang; nc.ude.tib@52215002

Received 13 March 2017; Accepted 23 April 2017; Published 18 May 2017

Academic Editor: Junhu Ruan

Copyright © 2017 Zhenglong Wu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Terminal guidance law against the maneuvering target is always the focal point. Most of the literatures focus on estimating the acceleration of target and time to go in guidance law, which are difficult to acquire. This paper presents a terminal guidance law based on receding horizon control strategy. The proposed guidance law adopts the basic framework of receding horizon control, and the guidance process is divided into several finite time horizons. Then, optimal control theory and target motion prediction model are used to derive guidance law for minimum time index function with continuous renewal of original conditions at the initial time of each horizon. Finally, guidance law performs repeated iteration until intercepting the target. The guidance law is of subprime optimal type, requiring less guidance information, and does not need to estimate the acceleration of target and time to go. Numerical simulation has verified that the proposed guidance law is more effective than traditional methods on constant and sinusoidal target with bounded acceleration.