Design of Missile Mid-Course Guidance for Constrained Impact Angle

B. H. Chen, T. L. Chen*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

This research develops a mid-course guidance law, which enables a constrained impact angle at the engagement, in response to the needs of modern missile design. To achieve this goal and share the workload with the terminal guidance, the mid-course guidance has to regulate the missile to a specific target location and a specific flight angle for a specific time-to-go. Therefore, conventional mid-course guidance laws are inadequate in this case. The proposed guidance law achieves this goal by recursively updating the target dynamics for the mid-course guidance, and applying optimal controls with frequently updated control parameters. Simulation results demonstrate the importance and effectiveness of the proposed method. In a simulation case, the interception missile is 100 kilometers away from the target missile, the flight speed of the two missiles are 1200 m/s and 800 m/s, respectively, and the requested impact angle is 150°. The proposed method achieves the positioning error and flight-path-angle error of 791 meters and 0.56°, at the end of mid-course guidance. When working with the previously developed terminal guidance, the miss distance and impact-angle error are 0.002m and 0.001° at the end of the engagement.

Original languageEnglish
Article number012007
JournalJournal of Physics: Conference Series
Volume1509
Issue number1
DOIs
StatePublished - 6 May 2020
Event10th Asian-Pacific Conference on Aerospace Technology and Science, APCATS 2019 and the 4th Asian Joint Symposium on Aerospace Engineering, AJSAE 2019 - Hsin Chu, Taiwan
Duration: 28 Aug 201931 Aug 2019

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