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arXiv 2006.08276eess.SYcs.SY
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等变系统理论与观测器设计

Equivariant Systems Theory and Observer Design

Robert Mahony, Tarek Hamel, Jochen Trumpf

摘要:

现代机器人和航空电子应用中的大量系统模型都承认自然对称性。这样的系统被称为等变的和结构所提供的对称性是一个强大的工具,在设计的观察员。在过去的十年中,已经取得了显着的进展,在设计的滤波器和观察器的姿态和姿态估计,跟踪单应性,和速度辅助姿态估计,利用其固有的李群状态空间结构。然而,几乎没有工作已经做了系统的齐次空间,这是系统的流形上的李群的行为,而不是系统的李群本身。机器人视觉领域的最新研究发现了齐次空间上的对称性和等变结构,这些问题包括视觉里程计和视觉同时定位和映射的关键问题。这些发现激发了对齐次空间上的等变系统的结构的更深入的研究。本文提供了一个全面发展的基础理论进行观测器和滤波器设计这样的系统。

英文摘要:

A wide range of system models in modern robotics and avionics applications admit natural symmetries. Such systems are termed equivariant and the structure provided by the symmetry is a powerful tool in the design of observers. Significant progress has been made in the last ten years in the design of filters and observers for attitude and pose estimation, tracking of homographies, and velocity aided attitude estimation, by exploiting their inherent Lie-group state-space structure. However, little work has been done for systems on homogeneous spaces, that is systems on manifolds on which a Lie-group acts rather than systems on the Lie-group itself. Recent research in robotic vision has discovered symmetries and equivariant structure on homogeneous spaces for a host of problems including the key problems of visual odometry and visual simultaneous localisation and mapping. These discoveries motivate a deeper look at the structure of equivariant systems on homogeneous spaces. This paper provides a comprehensive development of the foundation theory required to undertake observer and filter design for such systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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