Existing slope correction models

Model_1

Model_2

Model_3

Equation

expression

Authors

Akatsuka et al. (2009);

Japan Aerospace Exploration Agency (2009)

Kellndorfer et al. (1998);

Rokhmatuloh et al. (2012)

T. Castel et al. (2001);

M. Santoro (2011)

Symbol

explanation

Corrected digital number of SAR image

Original digital number of SAR image

Local incidence angle

SAR backscatter coefficient after calibration

Original SAR backscatter coefficient

Local incidence angle

SAR incidence angle at the center of the image

SAR backscatter coefficient after calibration

Original SAR backscatter coefficient

A : Local ground scattering area within a pixel

Local incidence angle

Incidence angle at mid-swath

n: