During the acquisition segment of a hydrographic survey, vessels equipped with sonar equipment measure the local depth as well as their own position. For an accurate survey to be performed, the vessel position must be known accurately, heave motion must be measured and compensated, and the vessel attitude must be known. The Navstar Global Positioning System operated in the differential mode can provide an accuracy on the order of 5 m or better for ship positioning. GPS, augmented with other low-cost sensors, can also provide the required accuracies for heave and attitude compensation. This paper describes a system concept to achieve these accuracies with special emphasis on ease of integration, cost minimization, selection of readily available, off-the-shelf equipment, and screw work load reduction. Proposed implementations are presented for the Differential Shore Station, the Shipboard System, and the Data Link System. Results of computer simulations for alternative shipboard filter designs are provided.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Highly accurate hydrographic surveys using differential GPS


    Additional title:

    Sehr genaue hydrographische Ueberwachung mit dem differentiellen GPS


    Contributors:
    Beser, J. (author)


    Publication date :

    1986


    Size :

    8 Seiten, 5 Bilder, 2 Tabellen, 3 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Hydrographic Surveys

    Online Contents | 2001


    IHO Standards for Hydrographic Surveys

    Pietrek, Hartmut / Deutsche Hydrographische Gesellschaft e.V. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2008

    Free access

    Hydrographic surveys of Ghana coast

    Power, G.C. | Engineering Index Backfile | 1960



    MARINE ENVIRONMENTAL SENSORS IN HYDROGRAPHIC SURVEYS

    Sanders, P. / Sanders, J. | British Library Online Contents | 2005