If an underwater vehicle is to be completely autonomous, it must have the ability to avoid obstacles to safely operate. A new method incorporating a fuzzy logic inference with an artificial neural network is presented. The method is used to establish a controller to control an autonomous underwater vehicle (AUV) to avoid obstacles. It not only exerts some expertise, but also endows the controller with adaptability. As a result, the AUV is provided with the ability of obstacle avoidance at the beginning, which greatly shortens the time of network learning. On the other hand, the controller can adjust itself to the variations of oceanic environment. Results of simulation using a five degrees of freedom nonlinear manoeuvring mathematical model of the vehicle show that the proposed method can be efficiently applied to obstacle avoidance of an AUV in complex and unknown oceanic environment.


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    Title :

    Obstacle avoidance using fuzzy neural networks


    Contributors:
    Liu, Xuemin (author) / Liang Peng (author) / Li, Jiawei (author) / Xu, Yuru (author)


    Publication date :

    1998


    Size :

    5 Seiten, 6 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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