Gravity-Turn-Assisted Optimal Intercept Angle Guidance Law

Shaoming He*, Chang Hun Lee, Hyo Sang Shin, Antonios Tsourdos

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

This chapter develops a new optimal gravity-turn-assisted intercept angle guidance law for an exo-atmospheric interceptor. The analytical guidance command is derived as a solution of a finite-time optimal regulation problem by using the Lagrange multiplier approach. The convergence of the instantaneous ZEM and intercept angle error is theoretically analyzed based on the instantaneous linear time-invariant system concept. We also reveal that existing optimal impact angle constrained guidance laws are the special cases of the proposed formulation. Numerical simulations with some comparisons clearly demonstrate the effectiveness of the proposed guidance law.

Original languageEnglish
Title of host publicationSpringer Aerospace Technology
PublisherSpringer Nature
Pages133-147
Number of pages15
DOIs
Publication statusPublished - 2020

Publication series

NameSpringer Aerospace Technology
ISSN (Print)1869-1730
ISSN (Electronic)1869-1749

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