Localized wave pulses in the keyport experiment
Localized wave (LW) pulses were produced using a standard Navy array in the anechoic tank at Navy Underwater Weapons Center (NUWC) Keyport. The LW pulses used were the MPS pulse first derived by Ziolkowski, and a new type of pulse based on a superposition of Gaussian beam modes. This new type is motivated by a desire to make a comparison of the MPS pulse with another broad band pulse built from solutions to the wave equation. The superposed Gaussian pulse can be described by parameters which are analogous to those describing the MPS pulse. We compare the directivity patternsand the axial energy decay between the pulses. We find the behavior of the pulses to be similar so that the superposed Gaussian could be another candidate in the class of low diffractive pulses known as localized waves.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 302870
- Report Number(s):
- UCRL-JC-129692; CONF-980617-; ON: DE98054338
- Resource Relation:
- Conference: 16. international conference on acoustics and 135. meeting Acoustical Society of America, Seattle, WA (United States), 20-26 Jun 1998; Other Information: PBD: 17 Feb 1998
- Country of Publication:
- United States
- Language:
- English
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