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An Embedded Real-time Passive Underwater Acoustic Localization System using a Compact Sensor Array

dc.contributor.authorMcEachern, Jordin
dc.contributor.degreeMaster of Applied Scienceen_US
dc.contributor.departmentDepartment of Electrical & Computer Engineeringen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.external-examinern/aen_US
dc.contributor.graduate-coordinatorVincent Siebenen_US
dc.contributor.manuscriptsNot Applicableen_US
dc.contributor.thesis-readerDr. David Barclayen_US
dc.contributor.thesis-readerDr. Colin O'Flynnen_US
dc.contributor.thesis-supervisorDr. Jean-Francois Bousqueten_US
dc.date.accessioned2023-04-17T15:29:43Z
dc.date.available2023-04-17T15:29:43Z
dc.date.defence2023-04-12
dc.date.issued2023-04-14
dc.description.abstractIn this thesis, a passive underwater acoustic localization system using a compact sensor array is developed which receives underwater acoustic sensor data and outputs the position estimations to a map display in real-time. Through simulation, it is evaluated using 130 kHz pulses, which is representative of the harbour porpoise echolocation clicks. The localization system is tested in several environments including the Aquatron, Bay of Fundy, Herring Cove, and New Zealand. The Time Difference of Arrival localization algorithm is used to estimate the position of sound sources using the difference of propagation time between multiple sensors. The implementation also improves upon a traditional grid search by using a lookup table stored in a hyperoctree to reduce the execution time of a position estimation. Additionally, a method to analyze and reduce the estimation error for different sensor geometries is developed. Finally, the impact of noise is mitigated by using various pre-processing techniques.en_US
dc.identifier.urihttp://hdl.handle.net/10222/82422
dc.language.isoenen_US
dc.subjectEmbedded Systemen_US
dc.subjectReal-timeen_US
dc.subjectUnderwater Acousticsen_US
dc.subjectLocalization Systemen_US
dc.subjectSensor Arrayen_US
dc.subjectPassive Localizationen_US
dc.subjectAcoustic Signal Processingen_US
dc.subjectCompact Spatial Arraysen_US
dc.subjectSystem-on-Chipen_US
dc.subjectSpatial Arraysen_US
dc.subjectReal-time Processingen_US
dc.titleAn Embedded Real-time Passive Underwater Acoustic Localization System using a Compact Sensor Arrayen_US

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