Introduction To The Theory And Application Of Wave Propagation And Scattering In Random Media

Akira Ishimaru

doi:10.1117/12.934048

7 December 1982 Introduction To The Theory And Application Of Wave Propagation And Scattering In Random Media

Akira Ishimaru

Proceedings Volume 0358, Applications of Mathematics in Modern Optics; (1982) https://doi.org/10.1117/12.934048
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

In recent years major advances have been made in the theory of wave propagation and scattering in random media. Examples are optical beam propagation through the atmospheric turbulence, ocean acoustic and optical fluctuations, wave scintillations in the planetary atmospheres, ultrasound scattering in biological media, and wave scattering in geophysical media. This paper presents an introduction to the theory of waves in random media with some applications. The media may be divided into random continuum, randomly distributed particles, and random surfaces. General formulations are given with a unified point of view. First-order scatter model, multiple scattering model, transport theory, and diffusion model are discussed together with their range of validity. The mutual coherence function formulation and its relationship with other formulations is discussed. Both cw and pulse cases are presented, and the relationships with coherence bandwidth and coherence time are clarified. Rough surface scattering is also discussed using the perturbation theory and the Kirchhoff formulation.

Citation Download Citation

Akira Ishimaru "Introduction To The Theory And Application Of Wave Propagation And Scattering In Random Media", Proc. SPIE 0358, Applications of Mathematics in Modern Optics, (7 December 1982); https://doi.org/10.1117/12.934048

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