Path integral analysis of high-frequency wave propagation in a random ionosphere
Path integral analysis of high-frequency wave propagation in a random ionosphere
- Author(s):
- DOI: 10.1049/cp:19970321
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- Author(s): Source: Tenth International Conference on Antennas and Propagation (ICAP), 1997 page ()
- Conference: Tenth International Conference on Antennas and Propagation (ICAP)
- DOI: 10.1049/cp:19970321
- ISBN: 0 85296 686 5
- Location: Edinburgh, UK
- Conference date: 14-17 April 1997
- Format: PDF
High-frequency waves propagating through or reflected by the ionosphere represent an important tool in long-distance radio communication and in ionospheric probing. The complexity of the propagation medium provides various effects not observed, for example, in a turbulent atmosphere. The regularly layered background, deterministic and random inhomogeneities of arbitrary spatial scales, dispersion and anisotropy, and the nonlinear and nonlocal character of the wave-medium interaction, make the ionosphere a natural laboratory for the investigation of wave processes. We restrict our attention to a limited number of simplified models to demonstrate the efficiency of a generalized path integral approach to the analysis of wave propagation in complicated environments. As is known, the path integral is formulated in a more natural manner for the parabolic type equations. Therefore, the main intermediate step is the transfer from the initial elliptic equation to some approximate or exact parabolic one. We consider the following two propagation models. The first one is related to HF narrow beam propagation in a reflection channel, and the second deals with wave scattering by random anisotropic inhomogeneities in the ionosphere, and with the resulting stochastic localization of radiation along quasilayered structures. (4 pages)
Inspec keywords: stochastic processes; dispersion (wave); parabolic equations; electromagnetic wave scattering; HF radio propagation; random processes; ionospheric electromagnetic wave propagation; electromagnetic wave reflection; integral equations
Subjects: Integral equations (numerical analysis); Radiowave propagation; Numerical approximation and analysis; Ionospheric electromagnetic wave propagation; Other topics in statistics
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