Douglas J. Wilson, Ph.D. Physical Oceanography Expertise: Acoustic measurement of sediments, multibeam sonar design and signal processing, computer modelling, sediment transport measurement, coastal waves and currents, rotary sonar image processing, design and construction of oceanographic instrument packages. Current research interests include the design and support of miniature multibeam imaging and profiling sonar systems. Scientific applications of all Imagenex sonar products, imaging and signal processing software development and support.