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The angular correlation function of wave scattering by a buried object embedded in random discrete scatterers under a random rough surface
Author(s) -
Zhang Guifu,
Tsang Leung,
Kuga Yasuo
Publication year - 1997
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/(sici)1098-2760(19970220)14:3<144::aid-mop3>3.0.co;2-k
Subject(s) - clutter , scattering , optics , physics , surface (topology) , radar , realization (probability) , microwave , correlation function (quantum field theory) , computational physics , acoustics , mathematics , geometry , computer science , statistics , telecommunications , dielectric , quantum mechanics
Radar detection of a target embedded in geophysical media can be obscured by clutter. In this article the angular correlation function (ACF) is studied for wave scattering by an object embedded in random discrete scatterers under a rough surface. The ACF is calculated by using realization averaging, frequency averaging, and angular averaging. The results of the ACF for volume scattering, combined volume, and rough surface scattering and with a buried object are shown and compared. It is found that the ACF can be used to distinguish scattering by random discrete scatterers, random rough surface, and a deterministic buried object. The clutter return can be suppressed and the target becomes conspicuous. The ratio of ACF of the scattered wave with a target and that without a target can be 10 dB larger than the ratio of intensities. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 14, 144–151, 1997