Grants and Contributions:

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Title:
Development of Advanced Control Methodologies for Harmonic Distortion Reduction in Nonlinear Acoustic Source
Agreement Number:
EGP
Agreement Value:
$25,000.00
Agreement Date:
Jun 14, 2017 -
Organization:
Natural Sciences and Engineering Research Council of Canada
Location:
Nova Scotia, CA
Reference Number:
GC-2017-Q1-00396
Agreement Type:
Grant
Report Type:
Grants and Contributions
Additional Information:

Grant or Award spanning more than one fiscal year. (2017-2018 to 2018-2019)

Recipient's Legal Name:
Pan, Ya-Jun (Dalhousie University)
Program:
Engage Grants for Universities
Program Purpose:

GeoSpectrum Technologies Inc. is an engineering company specialized in underwater acoustic transducers andx000D
systems, and meets the needs of various clients as the designers and manufactures of hydrophones and soundx000D
projectors as well as consultants on the integration and testing of acoustic systems, primary to the oil and gas,x000D
defence and surveillance and environmental sectors. GeoSepctrum's products and services are wide ranging,x000D
including underwater acoustic systems, from transducer design to controls, software, winch and handlingx000D
systems.x000D
GeoSpectrum is developing a new, coherent, low frequency sound projector for seismic surveys (Coherentx000D
Seismic Source or CSS), and faces challenges in controlling the high amplitude signal generation and limitingx000D
harmonic distortion. Without better control of the sound source, the product will be inefficient and providex000D
lower resolution imaging, while also having a more significant environmental impact. In order to deal withx000D
these challenges and improve its market position, the company needs to develop new control methods that arex000D
outside of their current capabilities.x000D
Currently, the company is keen on working with Dr. Pan on the project that involves conducting research onx000D
the modelling, developing advanced control approaches for the acoustic system to generate a desired lowx000D
frequency and high amplitude desired acoustic signal for underwater surveys. Potential methodologies tox000D
effectively reducing the harmonic distortion include iterative learning control, robust nonlinear control, andx000D
adaptive control with model identifications. Simulation studies as well as real time implementation will bex000D
investigated as well. The potential commercialization of the new device will place GeoSpectrum and Atlanticx000D
Canada as a leader on developing acoustic systems in conjunction with Dalhousie University.