Report
Global Stabilization of Antipodal Points on n-Sphere with Application to Attitude Tracking
| العنوان: | Global Stabilization of Antipodal Points on n-Sphere with Application to Attitude Tracking |
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| المؤلفون: | Tong, Xin, Cheng, Shing Shin |
| سنة النشر: | 2023 |
| المجموعة: | Computer Science |
| مصطلحات موضوعية: | Electrical Engineering and Systems Science - Systems and Control |
| الوصف: | Existing approaches to robust global asymptotic stabilization of a pair of antipodal points on unit $n$-sphere $\mathbb{S}^n$ typically involve the non-centrally synergistic hybrid controllers for attitude tracking on unit quaternion space. However, when switching faults occur due to parameter errors, the non-centrally synergistic property can lead to the unwinding problem or in some cases, destabilize the desired set. In this work, a hybrid controller is first proposed based on a novel centrally synergistic family of potential functions on $\mathbb{S}^n$, which is generated from a basic potential function through angular warping. The synergistic parameter can be explicitly expressed if the warping angle has a positive lower bound at the undesired critical points of the family. Next, the proposed approach induces a new quaternion-based controller for global attitude tracking. It has three advantageous features over existing synergistic designs: 1) it is consistent, i.e., free from the ambiguity of unit quaternion representation; 2) it is switching-fault-tolerant, i.e., the desired closed-loop equilibria remain asymptotically stable even when the switching mechanism does not work; 3) it relaxes the assumption on the parameter of the basic potential function in literature. Comprehensive simulation confirms the high robustness of the proposed centrally synergistic approach compared with existing non-centrally synergistic approaches. Comment: 8 pages |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1109/TAC.2023.3281341 |
| URL الوصول: | http://arxiv.org/abs/2306.05234 |
| رقم الانضمام: | edsarx.2306.05234 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1109/TAC.2023.3281341 |
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