TY - GEN
T1 - Position Biased Terminal Guidance Based on Geometric Tangent
AU - Chen, Hongfen
AU - Guo, Ke
AU - Wang, Songyan
AU - Chao, Tao
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - Aiming at the close observation of the faulty space crafts, the paper proposes an improved terminal guidance law with biased distance by considering the J2 perturbation and relative motion information. First, considering the J2 perturbation, the motion model of the approaching vehicle and the target is established based on equations of two-body motion. Then, taking into account relative motion information, a method for selecting offset observation points based on geometric tan-gent is raised. The coordinates of the biased point in the line-of-sight coordinate system are given in three-dimensional space, and the conversion relationship between the biased line-of-sight coordinate system and the line-of-sight coordinate system is obtained. Furthermore, the line-of-sight rate and the approach velocity between the approaching vehicle and the biased observation point is achieved. Moreover, the biased line-of-sight rate is introduced into the proportional navigation, and the biased guidance command is obtained, and the switching frequency of the orbit control engine is decreased via introducing the line-of-sight threshold. Last, the simulation experiments are carried out and the results show the accuracy and superiority.
AB - Aiming at the close observation of the faulty space crafts, the paper proposes an improved terminal guidance law with biased distance by considering the J2 perturbation and relative motion information. First, considering the J2 perturbation, the motion model of the approaching vehicle and the target is established based on equations of two-body motion. Then, taking into account relative motion information, a method for selecting offset observation points based on geometric tan-gent is raised. The coordinates of the biased point in the line-of-sight coordinate system are given in three-dimensional space, and the conversion relationship between the biased line-of-sight coordinate system and the line-of-sight coordinate system is obtained. Furthermore, the line-of-sight rate and the approach velocity between the approaching vehicle and the biased observation point is achieved. Moreover, the biased line-of-sight rate is introduced into the proportional navigation, and the biased guidance command is obtained, and the switching frequency of the orbit control engine is decreased via introducing the line-of-sight threshold. Last, the simulation experiments are carried out and the results show the accuracy and superiority.
KW - Biased distance
KW - Geometric method
KW - Line-of-sight rate
KW - Terminal guidance law
UR - https://www.scopus.com/pages/publications/85151151849
U2 - 10.1007/978-981-19-6613-2_538
DO - 10.1007/978-981-19-6613-2_538
M3 - 会议稿件
AN - SCOPUS:85151151849
SN - 9789811966125
T3 - Lecture Notes in Electrical Engineering
SP - 5572
EP - 5582
BT - Advances in Guidance, Navigation and Control - Proceedings of 2022 International Conference on Guidance, Navigation and Control
A2 - Yan, Liang
A2 - Duan, Haibin
A2 - Deng, Yimin
A2 - Yan, Liang
PB - Springer Science and Business Media Deutschland GmbH
T2 - International Conference on Guidance, Navigation and Control, ICGNC 2022
Y2 - 5 August 2022 through 7 August 2022
ER -