Thermal Noise Removal function

Available with Image Analyst license.

Overview

This raster function corrects backscatter disturbances caused by thermal noise in the input synthetic aperture radar (SAR) data, resulting in a more seamless image.

Removing thermal noise is necessary to normalize the backscatter signal within the entire SAR image, which is essential to both qualitative and quantitative use of SAR data.

Notes

Thermal noise is most obvious in cross-polarization SAR images, such as VH or HV, and SAR images with low backscatter.

Parameters

ParameterDescription

Raster

The input raster.