Two-dimensional fourier transform applied to helicopter flyover noise
By: Odilyn L. Santa Maria.
Contributors: Langley Research Center.
Series: [NASA technical memorandum] -- NASA/TM-1999-209114.; NASA technical memorandum -- 209114.
Publisher: National Aeronautics and Space Administration, Langley Research Center; National Technical Information Service, distributor
Published: 1999
Place of publication: Hampton, Va; Springfield, VA
Language: eng
Format: Microform
Subjects: Fourier transformation.; Aircraft noise.; Fourier analysis.; Aerodynamic noise.; Aeroacoustics.; Helicopters.
Other titles: Two dimensional fourier transform applied to helicopter flyover noise.
Notes: Shipping list no.: 1999-0729-M.

Microfiche. [Washington, D.C. : National Aeronautics and Space Administration, 1999] 1 microfiche.