Advanced time domain wave-number sensing for structural acoustic systems. I. Theory and design

TR Number
Date
1994-06-01
Journal Title
Journal ISSN
Volume Title
Publisher
Acoustical Society of America
Abstract

This paper discusses new work concerned with developing structural sensors and associated signal processing techniques that provide time domain estimates of far-field pressure or structural wave-number information. The sensor arrangement consists of multiple accelerometers whose outputs are passed through an array of linear filters. The impulse response of each filter is constructed from the appropriate Green's function for the elemental source area associated with each sensor. The outputs of the filter array are then summed in order to predict far-field pressure or wave-number information somewhat analogous to the well-known boundary element technique. A major significance of the approach is that it provides time domain information and can thus be efficiently applied to active structural acoustic control approaches.

Description
Keywords
Structural acoustics, Acoustic signal processing, Green's function methods, Nformation and communication theory, Information processing
Citation
Maillard, J. P., & Fuller, C. R. (1994). Advanced time domain wave-number sensing for structural acoustic systems. I. Theory and design. 1. THEORY AND DESIGN. Journal of the Acoustical Society of America, 95(6), 3252-3261. doi: 10.1121/1.409989