The estimation of towfish layback distance is usually performed with computer programs that implement numerical integration of system differential equations. The system dynamic model usually includes an estimate of coefficients of drag and velocities of the towfish and cable. Often these quantities are unknown or estimated with a great deal of uncertainty. The technique reported uses an optimization approach to circumvent the estimates of critical parameters and instead uses accurate measurements of towfish depth and length of cable paid out. A criterion is formulated and minimized using a simple gradient-optimization method. The simulation results indicate that the method works well and can be implemented in a real-time data-acquisition system.


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    Title :

    Optimal estimation of layback distance for marine towed cables


    Additional title:

    Optimale Schätzung des Auslegeabstandes für Schleppnetzkabel im Meer


    Contributors:

    Published in:

    IEEE Journal of Oceanic Engineering ; 16 , 2, PT.1 ; 217-222


    Publication date :

    1991


    Size :

    6 Seiten, 13 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





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