Previous research by the authors has investigated the application of nature inspired search strategies and particle swarm optimisation to the guidance of autonomous vehicles in search roles. Findings suggest that nature inspired search strategies are beneficial under a wide range of search conditions. However, that research did not consider the potential for reacquisition of lost targets, which is especially of interest where the targets are travelling faster than the searching agents or in environments that allow for some means of visual or other sensory occlusion. This work investigates whether behaviours observed in nature can be applied to scenarios where target detection is lost. Through employing a variety of reacquisition strategies against a range of target movement types it is demonstrated that the overall effectiveness of the system can be improved in a variety of scenarios by incorporating nature inspired reacquisition strategies. Section 2 briefly reviews the ethological literature that underpins the implemented reacquisition strategies, which are described in detail in Section 3. Section 4 describes the environment and occlusion mechanism used to necessitate reacquisition. Section 5 presents the empirical work and results. Section 6 discusses the findings and Section 7 concludes.


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    Title :

    Nature inspired target reacquisition strategies for autonomous vehicles in a search role


    Additional title:

    Der Natur abgesehene Zielwiedererfassungsstrategien für suchende autonome Fahrzeuge


    Contributors:

    Published in:

    The Journal of Navigation ; 63 , 2 ; 233-250


    Publication date :

    2010


    Size :

    18 Seiten, 15 Bilder, 1 Tabelle, 17 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English






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