Optimal impact time and angle control guidance with limited speed

Yijing Wang; Tao Song; Hong Tao; Denghui Dou; Chao Xu

doi:10.1117/12.3032652

16 August 2024 Optimal impact time and angle control guidance with limited speed

Yijing Wang, Tao Song, Hong Tao, Denghui Dou, Chao Xu

Proceedings Volume 13218, First Aerospace Frontiers Conference (AFC 2024); 132181X (2024) https://doi.org/10.1117/12.3032652
Event: First Aerospace Frontiers Conference (AFC 2024), 2024, Xi’an, China

Abstract

This paper proposes a three-dimensional (3-D) impact time and angle control guidance (ITACG) considering the limit of vehicle's speed to realize the spatio-temporal interception against a moving target. Firstly, a relative coordinate system with its origin attached on the target is constructed, based on which the engagement kinematics is formulated. Then, the guidance law is designed based on the prediction-correction concept in the reference frame, naturally decoupling into normal and tangential directions for impact angle and time constraint, respectively. In the normal channel, the final impact angle of PN guidance is predicted, and then the deviation between the predicted and expected angle is eliminated by leveraging the optimal control theory. Simultaneous strike is guaranteed from transforming the predetermined attack time to the desired relative velocity considering the speed limit. Employing the principles of the optimal control theory, the optimal analytical solutions for both normal and tangential control are derived. In addition, the allowed impact time that considers the vehicle’s speed limit is calculated to judge whether the desired attack time is feasible. The proposed guidance law is proved its feasibility and effectiveness by numerical simulation and comparison in various engagements.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yijing Wang, Tao Song, Hong Tao, Denghui Dou, and Chao Xu "Optimal impact time and angle control guidance with limited speed", Proc. SPIE 13218, First Aerospace Frontiers Conference (AFC 2024), 132181X (16 August 2024); https://doi.org/10.1117/12.3032652

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available