Experimental and numerical investigations of the Gaussian suppression of sound by sound
By: Mark Anthony Lamczyk, Jongkap Park
Contributors: Park, Jongkap
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1997
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 68
Subjects: ATTENUATION; ACOUSTIC SIGNALS
Description: In this work we report on experimental and numerical investigations of the attenuation of a small amplitude signal due to its interaction with high intensity, band limited sound whose spectrum consists of up to four discrete peaks. We probe the 'thermodynamic limit' for different configurations of the spectral components. In particular the attenuation of the signal is investigated for both equally and unequally spaced spectral components, as well as different phase relations among them. The possibility of collective modes is also explored by measurements of the phase change in the signal downstream due to the presence of discrete noise.
Notes: Thesis advisors, Andrés Larraza, Bruce C. Denardo.

AD-A331 722.

Thesis (M.S. in Applied Physics)--Naval Postgraduate School, June 1997.

Co-author's Thesis (M.S. in Engineering Acoustics)--Naval Postgraduate School, June 1997.

Includes bibliographical references (p. 63-65).