Coherent and incoherent components of sound scattered at a time dependent rough surface
Clay, Clarence Samuel
MetadataShow full item record
Theoretical expressions are derived for the sound scattered at a time-dependent rough surface. The calculations are made for a Gaussian shaded source transducer and point receiver. The Helmholtz theorem and Fresnel approximation are used. The rough surface is assumed to be a traveling wave and to have a traveling wave packet type of correlation function. The coherent component of the signal is the product of the Fourier transformation of the surface distribution function and the smooth surface reflection signal. Comparison of theory and experiment shows the coherent component to be sensitive to the non-Gaussian character of the wind-blown water waves. The incoherent components and the temporal correlation function of the scattered sound are given
NPS Report NumberNPS-61MD72121A
Showing items related by title, author, creator and subject.
Generalized Kirchhoff approach to the ocean surface‐scatter communication channel. Part II: Second‐order functions Ziomek, Lawrence J. (Acoustical Society of America, 1982);Three second‐order functions which characterize the ocean surface‐scatter communication channel are derived from the transfer function of the ocean surface. These second‐order functions include the two‐frequency correlation ...
Scheible, Jack W.; Fowler, Richard C. (Monterey, California. Naval Postgraduate School, 1968-06);Underwater sound was scattered from a wind-agitated random rough model sea surface. The surface energy spectral density, the surface rms height, and the surface correlation function were measured. The mean square magnitude ...
Bennett, Bradley Frederick. (Cambridge, Massachusetts; Massachusetts Institute of Technology, 1953-08);This paper reports an investigation of the distribution of the energy, E, of the secondary electrons released in an organic scintillator by secondary gamma radiation measured on the same side of a scattering medium as that ...