Open Access

ARTICLE

Study on Forced Straight-Line Guidance for the Final Translation Phase of Spacecraft Rendezvous

Baichun Gong¹, Chenglong He^{2, *}, Degang Zhang¹

1 Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China.
2 State Key Laboratory of Satellite Navigation System and Equipment Technology, Shijiazhuang, 050081, China.

* Corresponding Author: Chenglong He. Email: .

(This article belongs to the Special Issue: Nonlinear Computational and Control Methods in Aerospace Engineering)

Computer Modeling in Engineering & Sciences 2020, 122(1), 207-219. https://doi.org/10.32604/cmes.2020.08616

Received 16 September 2019; Accepted 31 October 2019; Issue published 01 January 2020

Abstract

Aimed at the problem of final translation of space rendezvous for the applications such as docking, inspection and tracking, optimal straight-line guidance algorithm based on pulse/continuous low-thrust in the context of Clohessy-Wiltshire dynamics is proposed. Two modes of guidance strategy: varying-speed and fixed-speed approaching scheme for V-bar and R-bar approach by using constant/finite low-thrust propulsion respectively are studied, and the corresponding fuel-optimal conditions are obtained. Numerical simulation is conducted to verify and test the proposed algorithms. The results show that there is generally no different between the fuel consumptions by using the two different approaching modes for V-bar case. However, the conclusion for R-bar case is different that the using of continuous low-thrust cost more fuel and transfer time.

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Keywords

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