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arXiv 2002.09850cs.RO
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基于噪声相对测量的多目标主动定位

Active localization of multiple targets using noisy relative measurements

University of Minnesota(明尼苏达大学)

Selim Engin, Volkan Isler

摘要:

考虑一个移动机器人,其任务是通过获得相对测量来定位未知位置的目标。观测可以是方位或距离测量。机器人应该如何移动,以定位目标,并尽可能快地减少其位置的不确定性?大多数现有的方法要么本质上是贪婪的,要么依赖于准确的初始估计。我们制定这个路径规划问题作为一个无监督学习的问题,其中使用贝叶斯直方图过滤器的测量聚合。机器人学习使用当前测量和当前置信状态的聚合表示在最短时间内最小化每个目标的总不确定性。我们分析我们的方法在一系列的实验中,我们表明,我们的方法优于标准的贪婪的方法。此外,它的性能也可以与离线算法相媲美,离线算法可以获得目标的真实位置。

英文摘要:

Consider a mobile robot tasked with localizing targets at unknown locations by obtaining relative measurements. The observations can be bearing or range measurements. How should the robot move so as to localize the targets and minimize the uncertainty in their locations as quickly as possible? Most existing approaches are either greedy in nature or rely on accurate initial estimates. We formulate this path planning problem as an unsupervised learning problem where the measurements are aggregated using a Bayesian histogram filter. The robot learns to minimize the total uncertainty of each target in the shortest amount of time using the current measurement and an aggregate representation of the current belief state. We analyze our method in a series of experiments where we show that our method outperforms a standard greedy approach. In addition, its performance is also comparable to an offline algorithm which has access to the true location of the targets.

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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