Slope corrections to normalized RCS using SAR interferometry

Author

Shimada, Masanobu ; Hirosawa, Haruto

Author_Institution

Nat. Space Dev. Agency of Japan, Tokyo, Japan

Volume

38

Issue

3

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

1479

Lastpage

1484

Abstract

This paper evaluates a method to obtain the slope-corrected normalized radar cross section (σ⁰) using SAR interferometry. An error model on a slope correction factor has been derived as a function of a scene coherence and a baseline distance. The model has been verified using JERS-1 SAR data and a ground terrain model. Analyses have shown that the proposed method can correct the radiometric slope effect within an accuracy of 0.3 dB if the interference condition is satisfied

Keywords

backscatter; geophysical techniques; radar cross-sections; remote sensing by radar; synthetic aperture radar; terrain mapping; InSAR; SAR interferometry; backscatter; baseline distance; error model; geophysical measurement technique; ground terrain; interference condition; land surface; model; normalized RCS; radar cross section; radar remote sensing; radar scattering; radiometric slope effect; scene coherence; slope correction; slope correction factor; synthetic aperture radar; terrain mapping; Earth; Error correction; Extraterrestrial measurements; Microwave radiometry; Radar cross section; Radar scattering; Radio interferometry; Remote sensing; Surface topography; Synthetic aperture radar;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.843047

Filename

843047