Synthetic_Aperture_Radar

SAR data downloading and processing

---

data_download

Downloads the Sentinel 1 satellite data from the Alaskan Facility center, and change the parameters such as date, orbit, and polarization according to the study.

---

data_preprocess

Batch preprocessing the Sentinel 1 data using graph tool. Change the input directory where all your raw files are stored and output to the path where you want to store all your files

steps in preprocessing

1) Apply orbit file

2) Thermal noise removal

3) Calibration

4) Terrain correction

5) Linear to Db conversion

6) Clip to the area of interest (Change the co-ordinates according to your study area)

---

Graph.xml

graph file where all the instructions for the preprocessing are saved. YOu can change it according to your requirements. An easy way to change is to prepare a file using SNAP software. You can even add a smoothening filter.