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Interrobot Transformations in 3-D
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DOI：10.1109/TRO.2010.2042539.png)
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Abstract
En 中文
In this paper, we provide a study of motion-induced 3-D extrinsic calibration based on robot-to-robot sensor measurements. In particular, we introduce algebraic methods to compute the relative translation and rotation between two robots using known robot motion and robot-to-robot 1) distance and bearing, 2) bearing-only, and 3) distance-only measurements. We further conduct a nonlinear observability analysis and provide sufficient conditions for the 3-D relative position and orientation ( pose) to become locally weakly observable. Finally, we present a nonlinear weighted least-squares estimator to refine the algebraic pose estimate in the presence of noise. We use simulations to evaluate the performance of our methods in terms of accuracy and robustness.
Keywords:
Cooperative localization
3-D extrinsic calibration
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