Legged Robot State Estimation using Invariant Kalman Filtering and Learned Contact Events
Legged Robot State Estimation using Invariant Kalman Filtering and Learned Contact Events
复制标题
使用不变卡尔曼滤波和学习接触事件的腿式机器人状态估计
DOI:
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发表时间:
2021
期刊:
影响因子:
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通讯作者:
Maani Ghaffari
中科院分区:
文献类型:
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作者:
Tzu;Ray Zhang;Justin Yu;Maani Ghaffari
This work develops a learning-based contact estimator for legged robots that bypasses the need for physical sensors and takes multi-modal proprioceptive sensory data as input. Unlike vision-based state estimators, proprioceptive state estimators are agnostic to perceptually degraded situations such as dark or foggy scenes. While some robots are equipped with dedicated physical sensors to detect necessary contact data for state estimation, some robots do not have dedicated contact sensors, and the addition of such sensors is non-trivial without redesigning the hardware. The trained network can estimate contact events on different terrains. The experiments show that a contact-aided invariant extended Kalman filter can generate accurate odometry trajectories compared to a state-of-the-art visual SLAM system, enabling robust proprioceptive odometry.
影响因子:
5.2
作者:
Lu Gan;Ray Zhang;J. Grizzle;R. Eustice;Maani Ghaffari
通讯作者:
Lu Gan;Ray Zhang;J. Grizzle;R. Eustice;Maani Ghaffari
影响因子:
9.2
作者:
Hartley, Ross;Ghaffari, Maani;Grizzle, Jessy W.
通讯作者:
Grizzle, Jessy W.