MMW radar scattering statistics of terrain at near grazing incidence

Author

De Roo, R.D. ; Ulaby, F.T. ; El-Rouby, A.E. ; Nashashibi, A.Y.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

Volume

35

Issue

3

fYear

1999

fDate

7/1/1999 12:00:00 AM

Firstpage

1010

Lastpage

1018

Abstract

The statistical behavior of clutter observed near grazing incidence and at 95 GHz is investigated for the specific cases of bare ground, snow cover, and for a heterogeneous scene. The bare ground constitutes a homogeneous target under homogeneous conditions and the magnitude of the amplitude is Rayleigh distributed. While the snow cover is a homogeneous target, the conditions under which it was observed are heterogeneous, and the Bayes rule is employed to describe its clutter distribution. The Bayes rule integrates variations due to signal fading with the underlying variations in the backscattering coefficient associated with the heterogeneity. The heterogeneous scene is also successfully described with the Bayes rule

Keywords

Bayes methods; backscatter; probability; radar clutter; radar cross-sections; radar imaging; radar polarimetry; remote sensing by radar; terrain mapping; 95 GHz; Bayes rule; MM-wave radar scattering statistics; PDF; Rayleigh distributed amplitude; backscattering coefficient; bare ground; clutter distribution; frequency averaging; heterogeneous conditions; heterogeneous scene; homogeneous conditions; homogeneous target; polarimetric radar image; signal fading; snow cover; terrain at near grazing incidence; Clutter; Frequency; Layout; Pulse measurements; Radar polarimetry; Radar scattering; Rayleigh scattering; Sea measurements; Snow; Statistics;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.784070

Filename

784070