A note on elastic noise source localization. (April 2016)

• Record Type: Journal Article
• Authors: Wahab, Abdul; Nawaz, Rab
• Is Part Of: Journal of vibration and control. Volume 22:Number 7(2016)
• Page Start: 1889
• Page End: 1894
• Publication Date: 2016-04
• Subjects: Noise source localization -- elasticity imaging -- inverse source problem; Vibration -- Periodicals; Damping (Mechanics) -- Periodicals; 620.3
• DOI: 10.1177/1077546314546511
• Languages: English
• ISSNs: 1077-5463

Abstract

The problem of reconstructing the spatial support of ambient noise sources from elastic wavefield boundary measurements using cross-correlation techniques is dealt with. It is demystified that the cross-correlation-based standard source localization functional in elastic media does not provide optimal refocusing due to different pressure and shear wave speeds. Then, a weighted functional is proposed to rectify the coupling artifacts. A numerical experiment is presented to substantiate the appositeness of the proposed functional.