autonomous search for a diffusive source in an unknownstructured environment

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ID: 179283
2014
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Abstract
The paper presents a framework for autonomous search for a diffusive emittingsource of a tracer (e.g., aerosol, gas) in an environment with an unknown map of randomlyplaced and shaped obstacles. The measurements of the tracer concentration are sporadic,noisy and without directional information. The search domain is discretised and modelledby a finite two-dimensional lattice. The links in the lattice represent the traversable paths foremitted particles and for the searcher. A missing link in the lattice indicates a blocked pathdue to an obstacle. The searcher must simultaneously estimate the source parameters, themap of the search domain and its own location within the map. The solution is formulated inthe sequential Bayesian framework and implemented as a Rao-Blackwellised particle filterwith entropy-reduction motion control. The numerical results demonstrate the concept andits performance.
Reference Key
ristic2014entropyautonomous Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Branko Ristic;Alex Skvortsov;Andrew Walker
Journal European journal of medicinal chemistry
Year 2014
DOI
10.3390/e16020789
URL
http://www.mdpi.com/1099-4300/16/2/789
Keywords
bayesian inference diffusionscienceastrophysicsphysics

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