Abstract
Target phase information in acoustic backscattering has been proposed as an additional target identification parameter. In general, incorporating phase into sonar signal processing for acoustical oceanography could aid in the assessment of fish populations and ecosystems. In this work, a broadband sonar system calibrated in amplitude and phase is used to measure the response of submerged targets in a laboratory water tank. Frequency domain data processing is applied, with target phase measured as a phase angle difference between two frequency components. This approach aims to eliminate range factors, leaving only target-induced phase features. The method is developed and validated by comparing experimental results to analytical and numerical methods, in the characterization of some targets with regular geometries such as spheres, shells, and cylinders. A compensation algorithm is implemented to account for phase ambiguities and arrive to a figure of merit for template classification. Simplified scenarios are studied in order to demonstrate the potential applicability of this method.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
