Scientists have found that rotating the towed fish or tilting the transducers to face the dipping surface in side scan sonar surveys, can easily create clear scanned underwater images with a relatively large gradient. An experiment was conducted on the EdgeTech 272TD towed fish transducer to detect the target situated on a slope in a reservoir. As the main beam was tilted 20 degree below the horizontal, the maximum signal should be 2.75 times the depth of towed fish without considering the refraction factor. The dipping angle of a scanned slope measures the degree of the rotated angle of transducer. The quality of the sonar image on the slope may be controlled by the distance related to the slope coverage. Adjusting the incident angle of acoustic beams from the transducer related to the dipping angle of the slope appeared simple and useful.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Water dams scanned by side scan sonar


    Additional title:

    Fischortung: Staubecken werden durch seitlich abtastendes Sonargerät abgetastet


    Contributors:

    Published in:

    Sea Technology ; 46 , 12 ; 57-60


    Publication date :

    2005


    Size :

    4 Seiten



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    CHOOSING SIDE SCAN SONAR FREQUENCIES

    McGowen, D. / Morris, R. | British Library Online Contents | 2013


    CARRYING DEVICE FOR SIDE-SCAN SONAR

    LIN YAN / CHEN MING / YU YANYUN et al. | European Patent Office | 2015

    Free access

    Erster Kieler Side Scan Sonar-Workshop

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

    Free access

    SIDE SCAN SONAR SEPARATED CONTROL UNIT

    LEE SEUNG HUN / JUNG SEOM KYU / JANG NAM DO | European Patent Office | 2016

    Free access