Callaghan Innovation Research Papers
|Title||A wide angle shallow water observing sonar|
|Publication Type||Conference Paper|
|Year of Publication||2011|
|Authors||Atkins, J., Barrel J., Scott N.L., and Stytsenko E.|
|Conference Name||OCEANS 2011 IEEE - Spain|
|Keywords||Acoustic devices, Design issues, Field of views, Marine reserve, Shallow waters, Signal processing, Single-beam, Transducer array, Underwater acoustics, Underwater_Ultrasound, Wide angle|
Initial results, briefly presented here, from a single-beam sounder installation support the presence in marine reserve of snapper spawning behaviour seen in captivity. A design for a split-beam adaptation of a commercial swath sounder to allow further investigation of this behaviour is presented here. Custom elements & transducer arrays to enlarge the swatch field of view have been designed, modelled, fabricated & tested. Design issues are introduced, calculated & measured polar patterns are presented. Signal processing additions to the swath processing are outlined to enable split-beam operation to locate individual fish targets. © 2011 IEEE.