Abstract
In nonlinear propagation, evolution of an acoustic pressure waveform depends strongly on the characteristics of the waveform. For example, the commonly observed waveform steepening is a coherent process involving a specific phase relationship between spectral components. Highamplitude military jet noise may show peak pressures ten times the root-mean-square pressure and may include jumps of hundreds of pascals in a few microseconds or less. Measurement of these waveforms containing fast rise times requires large bandwidth and high fidelity in phase. If the bandwidth and phase are not preserved then the waveforms can lose precisely those features that distinguish them from linear propagation. Whether such waveforms are used as starting fields for nonlinear propagation codes or as measurements for code validation, the impact of limitations in the measurement system must be understood.
| Original language | English (US) |
|---|---|
| Title of host publication | 19th National Conference on Noise Control Engineering 2005, Noise-Con 05 |
| Pages | 275-282 |
| Number of pages | 8 |
| State | Published - Dec 1 2005 |
| Event | 19th National Conference on Noise Control Engineering 2005, Noise-Con 2005 - Minneapolis, MN, United States Duration: Oct 15 2005 → Oct 17 2005 |
Publication series
| Name | 19th National Conference on Noise Control Engineering 2005, Noise-Con 05 |
|---|---|
| Volume | 1 |
Other
| Other | 19th National Conference on Noise Control Engineering 2005, Noise-Con 2005 |
|---|---|
| Country | United States |
| City | Minneapolis, MN |
| Period | 10/15/05 → 10/17/05 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics
Cite this
}
Nonlinear propagation modeling : Guidelines for supporting measurements. / Gabrielson, Thomas B.; Marston, Timothy M.; Atchley, Anthony A.
19th National Conference on Noise Control Engineering 2005, Noise-Con 05. 2005. p. 275-282 (19th National Conference on Noise Control Engineering 2005, Noise-Con 05; Vol. 1).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Nonlinear propagation modeling
T2 - Guidelines for supporting measurements
AU - Gabrielson, Thomas B.
AU - Marston, Timothy M.
AU - Atchley, Anthony A.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - In nonlinear propagation, evolution of an acoustic pressure waveform depends strongly on the characteristics of the waveform. For example, the commonly observed waveform steepening is a coherent process involving a specific phase relationship between spectral components. Highamplitude military jet noise may show peak pressures ten times the root-mean-square pressure and may include jumps of hundreds of pascals in a few microseconds or less. Measurement of these waveforms containing fast rise times requires large bandwidth and high fidelity in phase. If the bandwidth and phase are not preserved then the waveforms can lose precisely those features that distinguish them from linear propagation. Whether such waveforms are used as starting fields for nonlinear propagation codes or as measurements for code validation, the impact of limitations in the measurement system must be understood.
AB - In nonlinear propagation, evolution of an acoustic pressure waveform depends strongly on the characteristics of the waveform. For example, the commonly observed waveform steepening is a coherent process involving a specific phase relationship between spectral components. Highamplitude military jet noise may show peak pressures ten times the root-mean-square pressure and may include jumps of hundreds of pascals in a few microseconds or less. Measurement of these waveforms containing fast rise times requires large bandwidth and high fidelity in phase. If the bandwidth and phase are not preserved then the waveforms can lose precisely those features that distinguish them from linear propagation. Whether such waveforms are used as starting fields for nonlinear propagation codes or as measurements for code validation, the impact of limitations in the measurement system must be understood.
UR - http://www.scopus.com/inward/record.url?scp=84858985877&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84858985877&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84858985877
SN - 9781622762712
T3 - 19th National Conference on Noise Control Engineering 2005, Noise-Con 05
SP - 275
EP - 282
BT - 19th National Conference on Noise Control Engineering 2005, Noise-Con 05
ER -