AG1086A Concept Development: Sonar Images Part 2

I used this picture to indicate my first ideas for my honours project .                                                                

http://sanctuaries.noaa.gov/alligator/mtools.html

With this picture it shows a little more in depht of how sonar works.                                                         

http://www.dosits.org/science/advancedtopics/sonarequation/