MATLAB utilities for Sentinel-1 Level 1 datasets

This repository contains several MATLAB functions to read and prepare/process Sentinel-1 Level 1 datasets.

These functions were developed primarily to work with single-look complex (SLC) images acquired in TOPS mode, i.e. Sentinel-1's Interferometric Wide Swath (IW) or Extra Wide Swath (EW) modes. Expected compatibility with the StripMap (SM) and Wave (WV) modes, and with ground-range detected (GRD) images, is indicated for each function.

List of functions

NOTE: These functions may not work with MATLAB versions older than R2016b.

The USAGE file provides indications on how to use some functions.

• parseSafeManifest: Extract useful information from the manifest.safe file of a Sentinel-1 dataset. This function should work with any Sentinel-1 Level 1 dataset.
• readSent1Data: Read data in a Sentinel-1 measurement TIFF file. This function should work with any Sentinel-1 Level 1 image.
• applySent1Lut: Apply a calibration LUT to a Sentinel-1 SLC image. This function should be compatible with SLC images in all modes. It has not been tested with GRD images.
• private/getTIFFinfo: Extract useful parameters from a TIFF file, e.g. information used to read it, and perform basic checks. This function should work with any Sentinel-1 measurement TIFF file, but also for RADARSAT-2 images in the BigTIFF format.

Additional functions in the dev branch (under development or not fully tested):

• mergeSent1TopsBursts: Stitch (merge) bursts in a TOPS subswath. Applicable only to IW and EW SLC images.
• topsDeramping: Deramp TOPS data in azimuth. Applicable only to IW and EW SLC images.

Some of these functions use the xmlExtract utility, which provides an (arguably) easier way to extract data from XML files, like Sentinel-1's annotation files. This function, as well as its associated sub-functions, should thus be present in MATLAB's search path.