A Numerical Method for Studying Modulation Effects in Radar Observations of the Sea Surface

Author

Pan, Guangdong ; Johnson, Joel T.

Author_Institution

Dept. of Electr. & Comput. Eng. & ElectroScience Lab., Ohio State Univ., Columbus, OH

Volume

46

Issue

11

fYear

2008

Firstpage

3632

Lastpage

3636

Abstract

A numerical method for performing detailed investigations of modulation effects in sea backscattering is presented. The method is based on a combination of numerical hydrodynamic and electromagnetic codes as well as repeated simulations as the spectral content of the sea surface is varied. The results obtained can be useful in separating ldquotiltrdquo and hydrodynamic modulations in computed sea backscattering cross sections, and help to provide some insight into the need for ldquothree-scalerdquo modeling of sea surface returns. Sample results are presented to illustrate the basic process.

Keywords

ocean waves; radar applications; remote sensing by radar; hydrodynamic modulations; numerical method; radar observations; sea backscattering; sea surface electromagnetic codes; sea surface waves; three-scale modeling; tilt modulation; Backscatter; Electromagnetic scattering; Hydrodynamics; Radar cross section; Radar measurements; Radar remote sensing; Radar scattering; Sea measurements; Sea surface; Surface waves; Hydrodynamics; sea surface electromagnetic scattering;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/TGRS.2008.2000719

Filename

4685939