Wave propagation and scattering in random media and rough surfaces
Article Abstract:
The historical developments in the field of wave propagation and scattering in random media are addressed in terms of the theories and applications in recent research. Since man-made and natural media often vary randomly in time and space, the electromagnetic, optical and acoustic waves that propagate in these media also fluctuate in that manner. The fluctuations can affect communications, identification and remote sensing through and within the random media. Three areas of wave propagation and scattering in random media are addressed. Random continuum, randomly distributed particles and rough surfaces are put in an historical perspective. Early work in scattering turbulence laid the groundwork for subsequent studies looking at wave propagation in turbulence and random continuum in which the refractive index is a random function. Acoustic scattering and backscattering research has developed out of these studies.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1991
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Millimeter-wave propagation through a terrestrial atmosphere
Article Abstract:
A new technique is developed for the determination of frequency distortion of millimeter wavelength rays by the atmosphere through the modeling of a varying atmosphere surrounding a spherical earth as a frequency-dependent perturbation of atmospheric refractivity. The atmosphere is absorptive, dispersive, and inhomogeneous at millimeter wavelengths, with consequent ray bending and frequency distortion. Details of the algorithm development and validation are described.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1988
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Wave Propagation Through Random Media: Contributions from Ocean Acoustics
Article Abstract:
A review is given of work in sound transmission through a field of internal waves. Internal waves have features different from those of homogeneous isotropic turbulence. A path-integral solution of the parabolic wave equation is the basis for the theoretical treatment. Experiments are discussed in relation to the results.
Publication Name: Proceedings of the IEEE
Subject: Electronics
ISSN: 0018-9219
Year: 1983
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