Sentinel_Radiometric_Calibration_Tool

This repository contains script for performing radiometric calibration of point targets for Sentinel-1 Imagery.

Toolbox

GUI

Working

Instructions

Sentinel-1 VV Image

Corner Reflectors

Annotation File

Calibration File

Processing

Installation requirements :

The tool has been tested with the following :

• Python (ver 3.5+)
• GDAL ( ver. 2.0.3)
• Numpy( ver. 1.11.1)
• matplotlib(ver. 1.5.3)
• scipy (ver. 0.18.1)
• mpldatacursor(ver. 0.6.2)
• tkinter (ver. 8.5.18)
• scikit-image(ver. 0.12.3)

The tool does not require any other open source software and is built from scratch utilising the above libraries/packages.

Data Utilised

For Demonstration purpose,the Sentinel-1 IW(Interferometric Wide Swath mode) GRD(Ground Range Detected) data is used with Identifier S1A_IW_GRDH_1SDV_20180206T010949_20180206T011014_020479_023059_419C and the corner reflectors utilised are Triangular Trihedral. The data can be downloaded from esa-scihub-copernicus

Calibration Steps

Please follow the Radiometric Calibration document carefully for successful calibration.