Hybrid Guidance Optimization for Multipulse Glideslope Approach with Bearing-Only Navigation

Yuan, Hao and Li, Dongxu and Wang, Jie (2022) Hybrid Guidance Optimization for Multipulse Glideslope Approach with Bearing-Only Navigation. Aerospace, 9 (5). p. 242. ISSN 2226-4310

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Abstract

This paper proposes a modified glideslope guidance method that optimizes a hybrid multiobjective of bearing-only navigation error and fuel consumption. The traditional glideslope guidance fixes uniform maneuver intervals and the initial approach velocity as a predetermined value, making this approach inflexible. In this paper, the maneuver intervals and the initial approach velocity were used as optimization variables, and a hybrid cost function was designed. The tradeoff between the two objectives was analyzed with a bearing-only navigation simulation conducted to reveal the navigation performance following different resulting trajectories. The result showed that the optimal scheduled times of maneuvers remained relatively stable under different tradeoff weights, while a strong correlation between the optimal initial approach velocity and the tradeoff weight was revealed. Therefore, when the optimization has to be solved several times online with different tradeoff weights, the initial approach velocity can be the only optimization variable, leaving the scheduled times of maneuvers fixed in the optimal values achieved offline. These findings provide a potential reference for far-approach trajectory design of bearing-only navigation.

Item Type: Article
Subjects: Open Article Repository > Engineering
Depositing User: Unnamed user with email support@openarticledepository.com
Date Deposited: 06 Apr 2023 05:31
Last Modified: 03 Oct 2024 04:46
URI: http://journal.251news.co.in/id/eprint/1019

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