Eliminating the Effects of Multipath Signal Propagation in a Smoothly Inhomogeneous Medium

• Published in: Radiophysics and quantum electronics Vol. 56; no. 7; pp. 413 - 421
• Main Authors: Tinin, M.V., I.Knizhin, S.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-12-2013; Springer; Springer Nature B.V
• Subjects: Astronomy; Astrophysics and Astroparticles; Computer simulation; Diagnostic systems; Emission; Fourier transforms; Hadrons; Heavy Ions; Inhomogeneous media; Lasers; Mathematical and Computational Physics; Navigation; Nuclear Physics; Observations and Techniques; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; Quantum electronics; Quantum Optics; Signal processing; Theoretical; Spatial Processing; Inhomogeneous Medium; Inhomogeneous Layer; Local Irregularity; Irregularity Scale
• ISSN: 0033-8443; 1573-9120
• DOI: 10.1007/s11141-013-9444-y

One of the important problems of communication, navigation, and diagnostics of inhomogeneous media is multipathing, in which the signal propagates on different paths between the points of emission and reception. In this paper, using a numerical simulation we explore the capabilities of the spatial signal processing to eliminate the effects of multipath signal propagation in a smoothly inhomogeneous medium. It is shown that the multipathing effects disappear after the spatial processing based on double weighted Fourier transform in the presence of multipath propagation in a medium with irregularity scales both more and less than the Fresnel radius.