During autonomous navigation, environmental information and map noises at different locations may have dissimilar influence on a vehicle’s localization process. This implies that the vehicle’s localizability, i.e., the ability to localize itself in an environment using laser range finder (LRF) readings, varies over a given map. It is essential to take this factor into consideration when planning a path to avoid large localization errors or placing the vehicle at risk of failure to perform localization. We propose a localizability constraint (LC)-based path planning method for autonomous vehicles which plans the navigation path according to LRF sensor model of the vehicle in an effort to maintain a satisfactory level of localizability throughout the path, as well as to reduce the overall localization error. Our method is not limited to any specific algorithm in the optimization stage. Paths planned with and without LC are compared, and the influence of the LRF sensor model on planning outcomes is discussed through simulations. By conducting comparative experiments on a “JiaoLong” intelligent wheelchair in both indoor and outdoor environments, we show that the proposed method effectively lowers the localization error along the planned paths.


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    Titel :

    A Localizability Constraint-Based Path Planning Method for Autonomous Vehicles


    Beteiligte:
    Irani, Behnam (Autor:in) / Wang, Jingchuan (Autor:in) / Chen, Weidong (Autor:in)


    Erscheinungsdatum :

    01.07.2019


    Format / Umfang :

    5506335 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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