Optimal interpolation of structural responses for active noise control

Author

Heck, Larry P. ; Naghshineh, Koorosh

Author_Institution

Speech Technol. & Res. Lab., SRI Int., Menlo Park, CA, USA

Volume

5

Issue

6

fYear

1997

fDate

11/1/1997 12:00:00 AM

Firstpage

560

Lastpage

565

Abstract

This paper presents a method for interpolating a sparse set of velocity measurements on the surface of a vibrating structure. The method is based on a novel integration of a physical model of the vibrating structure with an optimal signal recovery technique. The ability to achieve good interpolation performance with a small set of sensors makes this method important for many active noise control applications where an accurate measure of structural surface velocity is required to predict the radiated acoustic field. To demonstrate the applicability of this method in active control applications, a sample experiment is performed and results presented

Keywords

acoustic field; acoustic noise; acoustic variables measurement; acoustic wave velocity; active noise control; interpolation; optimisation; structural acoustics; vibration measurement; active noise control; active structural acoustics control; experiment; interpolation performance; optimal interpolation; optimal signal recovery; physical model; radiated acoustic field; sensors; structural responses; structural surface velocity measurement; velocity measurements; vibrating structure; Active noise reduction; Cutoff frequency; Interpolation; Optimal control; Signal processing algorithms; Signal synthesis; Speech analysis; Speech processing; Speech synthesis; Testing;

fLanguage

English

Journal_Title

Speech and Audio Processing, IEEE Transactions on

Publisher

ieee

ISSN

1063-6676

Type

jour

DOI

10.1109/89.641302

Filename

641302