The angular correlation function of wave scattering by a buried object embedded in random discrete scatterers under a random rough surface

✍ Scribed by Guifu Zhang; Leung Tsang; Yasuo Kuga

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 306 KB
• Volume: 14
• Category: Article
• ISSN: 0895-2477
• DOI: 10.1002/(sici)1098-2760(19970220)14:3<144::aid-mop3>3.0.co;2-k

✦ Synopsis

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 wa¨e scattering by an object embedded in random discrete scatterers under a rough surface. The ACF is calculated by using realization a¨eraging, frequency a¨eraging, and angular a¨eraging. The results of the ACF for ¨olume scattering, combined ¨olume, 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 wa¨e with a target and that without a target can be 10 dB larger than the ratio of intensities.