Adaptive super-spiral sliding mode aerial refueling rendezvous control method based on line-of-sight guidance

By employing a line-of-sight guided adaptive superspiral sliding mode method, the problems of insufficient accuracy and robustness in in-flight autonomous refueling and rendezvous were solved, achieving high-precision and smooth rendezvous control applicable to various aircraft types.

CN122411564APending Publication Date: 2026-07-17HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HOHAI UNIV
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing autonomous aerial refueling and rendezvous guidance methods struggle to guarantee accuracy and robustness in the face of uncertain disturbances and maneuvering environments. Traditional line-of-sight guidance lacks effective compensation, sliding mode guidance is prone to chattering, and existing adaptive methods are not robust enough under high maneuvering conditions.

Method used

An adaptive superspiral sliding mode aerial refueling rendezvous control method based on line-of-sight guidance is adopted. By constructing an adaptive superspiral sliding mode guidance law, guidance commands are generated to drive the receiver aircraft to gradually approach the tanker aircraft to achieve rendezvous. This includes constructing a virtual tanker aircraft, a target line-of-sight vector, a sliding mode surface, and an adaptive superspiral sliding mode guidance law, combined with a six-degree-of-freedom nonlinear model for control.

Benefits of technology

It improves rendezvous accuracy and robustness, reduces chattering, lowers the burden on actuators, achieves fast and stable rendezvous, is applicable to various aircraft types, has a moderate computational load, and is easy to implement in engineering.

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Abstract

本发明公开了基于视线制导的自适应超螺旋滑模空中加油会合控制方法,涉及飞机自主制导与空中加油技术领域,包括:根据加油机的位置矢量,结合预设会合指定相对距离,构建虚拟加油机,并建立受油机与虚拟加油机之间的目标视线矢量;基于目标视线矢量,根据视线制导策略,构建满足预设会合控制目标的滑模面,并设计自适应超螺旋滑模制导律;实时获取加油机和受油机的位置,并根据自适应超螺旋滑模制导律,生成制导指令,进而利用制导指令驱动包含飞行控制系统的六自由度非线性模型,实现对受油机的控制。本发明能够显著提升会合制导的控制精度与系统鲁棒性,在有效抑制传统滑模控制固有的抖振现象的同时,优化了制导指令的平滑性。
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