FIR models for sonic boom propagation through turbulence

Lance L. Locey, Victor Ward Sparrow

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

It is challenging to develop a physics-based model for propagation through atmospheric turbulence. A number of models are currently available but are typically not based on experimental results. A fresh approach might be to construct some type of "black box" filter function for producing typical distorted sonic boom waveforms on the ground. The input to the filter could be arbitrary, non-distorted sonic boom waveforms above the turbulence. As an initial model, a single input-output system was assumed. Ground-recorded waveforms were used as outputs of the system. The transfer function between the two signals was estimated using Welch's average periodogram method. Data obtained from the 2004 Shaped Sonic Boom Experiment (SSBE) was analyzed and corresponding transfer functions were obtained. With such transfer functions established, FIR filters were determined and convolved with an appropriate input waveform. Such FIR filters allow for the production of "typical" atmospherically distorted waveforms given arbitrary input waveforms.

Original languageEnglish (US)
Title of host publicationINNOVATIONS IN NONLINEAR ACOUSTICS - ISNA 17
Subtitle of host publication17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum
Pages623-626
Number of pages4
DOIs
Publication statusPublished - Dec 1 2006
EventINNOVATIONS IN NONLINEAR ACOUSTICS - ISNA17: 17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum - State College, PA, United States
Duration: Jul 18 2005Jul 22 2005

Publication series

NameAIP Conference Proceedings
Volume838
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherINNOVATIONS IN NONLINEAR ACOUSTICS - ISNA17: 17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum
CountryUnited States
CityState College, PA
Period7/18/057/22/05

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Locey, L. L., & Sparrow, V. W. (2006). FIR models for sonic boom propagation through turbulence. In INNOVATIONS IN NONLINEAR ACOUSTICS - ISNA 17: 17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum (pp. 623-626). (AIP Conference Proceedings; Vol. 838). https://doi.org/10.1063/1.2210430