Abstract
In this article we propose a novel methodology for the non-invasive estimation of the geometry of the modes of vibration of a vibrating structure, which uses the signals captured by a microphone array placed in close proximity of the vibrating structure. We propose a measurement approach based on an efficient formulation of the Nearfield Acoustic Holography (NAH) problem, using a small sets of equivalent sources that are able to represent a continuous vibrating structure. In this new reformulation of the solution, a Group Dictionary Equivalent Sources Method is developed, which combines the efficiency and flexibility of equivalent sources, with a sparse reconstruction scheme that takes into account prior knowledge about the mechanical behavior of the object under investigation computed through FEA.
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 callMore From: IEEE/ACM Transactions on Audio, Speech, and Language Processing
Disclaimer: 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.
