Gamma Software Demo examples


Last change: 3-Nov-2022 cm, uw, ts, and sl


Name
Contents
Readme files
README_Gamma_Software_demo_MSP.html Demo examples for MSP

README_Gamma_Software_demo_IPTA.html Demo examples for IPTA

Gamma_demo_ASNARO2_Uluru.tar.gz
Demo example on the use of ASNARO2 X-band SAR data and the generation of a high resolution DEM using multiple ASNARO2 interferometric pairs and the SRTM 3" DEM.
README

last update: 11-Jan-2021
Gamma_demo_BM3D_filter.tar.gz
Demo examples on the use of the new bm3d filtering program (in LAT module). Besides backscatter images complex valued images as interferograms or rasterfiles can be filtered. The demo includes two change detection examples that make use of bm3d.
README

last update: 16-Dec-2020
Gamma_demo_Capella.tar.gz
Demo example on the commands for reading and using Capella SAR data products acquired using various modes and provided as SLCs and geocoded products
README

last update: 24-Jun-2021
Gamma_demo_closure_phase_PALSAR_Etna.tar.gz
Based on 5 co-registered PALSAR SLC the demo calculates and visualizes the multi-look interferometric closure phase (A_B + B_C – A_C) using the program closure_phase.
README

last update: 20-Apr-2021
Gamma_demo_DEM.tar.gz
This demo shows how to import DEMs into the Gamma Software. It includes examples for the widely used SRTM DEM, the newer Copernicus DEM, the 90m TDX DEM and a freely available DEM from New Zealand.
README

last update: 21-Dec-2020
Gamma_demo_ICEYE.tar.gz Demonstrate reading of ICEYE X-band SAR data for different acquisition modes and processing levels. README

last update: 29-Dec-2020
Gamma_demo_ionosphere_PALSAR1_Furuya.tar.gz Based on a PALSAR-1 SLC pair the identification, estimation and migration of the ionospheric path delay phase is demonstrated. The pair is affected by strong ionospheric effects (same data as used in Furuya M., Suzuki T., Maeda J., and Heki K., (2017). Midlatitude sporadic-E episodes viewed by L-band split-spectrum InSAR, Earth Planets and Space (2017) 69:175; https//doi.org/10.1186/s40623-017-0764-6.
README 1
README 2

last update: 15-Apr-2021
Gamma_demo_ionosphere_PALSAR2_Tokyo.tar.gz Based on a PALSAR-2 SLC pair over Tokyo the identification, estimation and migration of the ionospheric path delay phase is demonstrated for a case not affected by particularly strong ionospheric effects.
README

last update: 15-Apr-2021
Gamma_demo_ionosphere_S1.tar.gz For a set of 5 S1 IWS acquisitions the demo shows the estimation and subtraction of the ionospheric phase using split-spectrum techniques; and the use of SSI_INT_S1.
README 1
README 2

last update: 4-Feb-2021
Gamma_demo_PALSAR2_multi_resolution.tar.gz
PALSAR-2 provides SLC data in modes with different spatial resolution. Cross-mode interferometry is demonstrated for an SM2 – SM1 pair (having different bandwidths and a different center frequency) and an SM1 – SPT pair (having different azimuth bandwidths. Bandpass filtering is done using either bpf or SLC_adf, to shift the effective radar carrier frequency the program SLC_freq_shift is used.
README

last update: 5-Feb-2021
Gamma_demo_PALSAR2_ScanSAR_NZ.tar.gz
Demo example on the generation of a large-area differential interferogram using PALSAR-2 ScanSAR SLC (processed using the full-aperture processor, provided in CEOS format). Two mosaicking methods are used: in slant-range geometry and in map geometry. In addition, for both cases, the co-registration can be done with and without refinement using an offset field. This leads to four versions for that example. Only data of 2 sub-swaths are included in the zip files provided. Nevertheless, the total size of the demo files is 25 GB. README 1
README 2
README 3
README 4

last update: 6-Jul-2022
Gamma_demo_PALSAR2_ScanSAR_Stripmap_InSAR.tar.gz
Demonstrate the generation of a PALSAR-2 ScanSAR – to – stripmap mode cross-interferogram. The required common band filtering is done using the filter program SLC_adf.
README

last update: 8-Feb-2021
Gamma_demo_radcal.tar.gz
Shows how the topography-related backscattering component can be removed from SAR images to provide radiometrically "flattened" images. The process relies on precise geocoding and on the calculation of the illuminated area contributing to each individual pixel in slant-range geometry using a digital elevation model (DEM). README

last update: 21-Apr-2021
Gamma_demo_RCM.tar.gz
Demonstrate how to read Radarsat Constellation Mission (RCM) data for different acquisition modes and processing levels. README

last update: 23-Dec-2020
Gamma_demo_RFI_filtering.tar.gz
Demonstrate how to do Radio Frequency Interference (RFI) filtering to SLC data (PALSAR, and S1 examples). README 1
README 2
README 3

last update: 15-Mar-2022
Gamma_demo_RSAT2_multi_resolution.tar.gz
Demonstrating a multi-resolution RSAT2 DinSAR processing (using SLC with different bandwidths).
README

last update: 20-Apr-2021
Gamma_demo_S1_burst_number.tar.gz
Demonstrates the identification of Sentinel-1 burst numbers in S1 IWS or EWS SLC data ZIP-files and the preparation of BURST_tab files (for indicated ZIP-files) for selection of bursts:
- corresponding to an indicated reference (ZIP-file)
- corresponding to an indicated burst_number_table
- covering an area of interest specified in a KML file
This demo is very useful for learning how to efficiently read and import S1 data covering a specific area-of-interest for time-series processing.
README

last update: 28-Jan-2021
Gamma_demo_S1_coherence_estimation.tar.gz
An alternative coherence estimation path for S1 IWS data that estimates the coherence in the burst MLI geometry is demonstrated. The advantage of this approach is that it is not affected by phase jumps at burst or sub-swath interfaces.
README

last update: 20-Apr-2021
Gamma_demo_S1_IranIraqEarthquake20171112_asc+desc.tar.gz
This example demonstrates the generation of S1 co-seismic differential interferograms and offset tracking as well as the decomposition of displacement components based on the asc. and desc. orbit DInSAR phases and/or offset fields.
README

last update: 9-Feb-2022
Gamma_demo_S1_TOPS_Stripmap_InSAR.tar.gz
In this example, the generation of a Sentinel-1 IWS – to – stripmap mode cross-interferogram is demonstrated. The required common band filtering is done using the new filter program SLC_adf.
README

last update: 15-Jan-2021
Gamma_demo_SAOCOM.tar.gz In this demo we show how SAOCOM data are read and how they can be used:
- a pair of interferometric stripmap SLC images is read and geocoded, then basic interferometric outputs are generated
- polarimetric TOPS SLC data are read, mosaiced, a Pauli decomposition is carried out, and the result is geocoded
- geocoded polarimetric data are read and a RGB image is generated
README

last update: 17-Dec-2020
Gamma_demo_SBI_PALSAR_Etna.tar.gz
Demonstrating ionosphere identification and Split-Beam InSAR (SBI) on PALSAR-1 data.
README

last update: 15-Apr-2021
Gamma_demo_SCH_and_gc_map2.tar.gz
Demonstrating geocoding for orbits clearly different from N-S direction using either SCH coordinates or using the program gc_map2.
README

last update: 22-Apr-2021
Gamma_demo_ScanSAR_DInSAR_S1_A174.tar.gz
In this demo example the ScanSAR interferometry functionality is tested / demonstrated using a pair of S1 IWS SLC data.
README

last update: 27-Apr-2021
Gamma_demo_vis.tar.gz Visualization and rasterfile generation using the new Python visualization and rasterfile programs vis*.
README

last update: 16-Dec-2020
PALSAR_Etna_atm.tar.gz Estimation of spatially variable height dependent atmospheric phase using atm_mod_2d. README

last update: 6-Jan-2021
S1A_S1B_DINSAR_ItalyEarthquake_demo.tar.gz Sentinel-1A - Sentinel-1B DInSAR (co-registration differential interferogram, unwrapping) for co-seismic pair. Data consist of 2 sub-swaths with 3 and 2 bursts.
README

last update: 4-Jan-2021
S1_Bari_coreg_demo.tar.gz The selection and extraction of corresponding S1 IWS bursts is demonstrated for a pair of S1 acquisitions (using S1_extract_png, S1_BURST_tab_from_zipfile, S1_import_SLC_from_zipfiles). The bursts to be used are provided in two separate zip files (“slices”) each, with the interface between the zip files being offset between the first and the second acquisition. Using S1_coreg_TOPS_dual_pol both the VV and VH pol. data are then co-registered (using for both polarizations the same transformation) and used to calculate differential interferograms at both VV and VH polarizations.
README

last update: 4-Jan-2021
S1_DevonIceCap_demo.tar.gz Sentinel-1A offset tracking and split-beam interferometry (co-registration, differential interferogram, split-beam interferogram, offset tracking). Data consist of 2 sub-swaths. The example also shows the identification and effects of ionospheric effects on S1 TOPS data.
README

last update: 6-Jan-2021
S1_Greenland_tracking_demo.tar.gz Sentinel-1A offset tracking (co-registration, differential interferogram offset tracking, post-processing of offset field, geocoding of result). Data consist of 2 sub-swaths with 2 bursts each. The sequence includes an initial offset estimation followed by a second offset estimation using offset_pwr_tracking2 and post-processing of the results. README

last update: 5-Jan-2021
S1_Magdeburg_multitemp_demo.tar.gz Demonstration of multi-temporal filtering of Sentinel-1 data. Processing starts from 24 co-registered SLC mosaics at VV and VH Pol.
README

last update: 16-Dec-2020
S1_Mexico_coreg_demo.tar.gz Sentinel-1A Co-registration example (reading of SLC data, selection of bursts corresponding to the bursts present in the reference “burst SLC” (using updated version of par_S1_SLC and new program S1_BURST_tab), co-registration, calculation of differential interferogram, deramping, and split-beam interferogram generation).
README

last update: 4-Jan-2021
S1_Mexico_INSAR_demo.tar.gz Sentinel-1A DInSAR (co-registration, differential interferogram) for a pair over Mexico showing significant deformation. Data consist of 2 sub-swaths with 2 bursts each.
README

last update: 4-Jan-2021
S1_Yibal_InSAR_demo.tar.gz Introduction to SAR interferometry using Sentinel-1 data:
- Learn pre-processing steps for interferometry using Sentinel-1 data: Sentinel-1 data download, data extraction including burst selection, DEM preparation, geocoding, coordinate system change, generation of height map in radar geometry
- Coregister Sentinel-1 data using ScanSAR_coreg.py script, analyze the results
- Generate a differential interferogram
- Calculate the coherence, and produce an RGB product based on the coherence, change, and intensity
- Geocode the results and save images as GeoTIFF or KML
README

last update: 15-Dec-2020
TDX_demo_Etna.tar.gz Generation of a DEM from a pair of TanDEM-X resampled slc data with support of the SRTM DEM for geocoding and phase unwrapping.
README

last update: 29-Dec-2020
gamma_demo_cd_20210415.tar.gz This archive contains
- ERS SAR raw data of Flevoland (NL)
- ERS SAR SLC data of the area of Las Vegas (USA)
- ERS-2 SAR and ENVISAT ASAR SLC data of the Seeland region (Switzerland)
- ALOS PALSAR SLC data of a glacier in Novaya Zemlya (Russia)
- ASTER data and a DEM of the area of Las Vegas (USA)
to demonstrate the use of the root MSP, ISP, DIFF&GEO, and LAT software packages (somewhat outdated historic procedures)
README

last update: 15-Apr-2021
mat_gamma_demo.tar.gz This demo example shows how the gamma Matlab wrapper supports running the GAMMA Software within the Matlab environment.
README 1
README 2

last update: 21-Apr-2021
py_gamma_demo.tar.gz This demo example shows how the gamma python wrapper supports running the GAMMA Software within Python scripts as well as within a Python Interactive Development Environment (IDE) such as Spyder3 or using Jupyter Notebook.
README 1
README 2

last update: 21-Apr-2021

If you run into difficulty while running any of these examples, please contact Christophe Magnard (magnard@gamma-rs.ch), Urs Wegmüller (wegmuller@gamma-rs.ch), or Charles Werner (cw@gamma-rs.ch).

GAMMA REMOTE SENSING AG
Worbstrasse 225
3073 Guemligen, Switzerland
Tel: +41 31 951.70.05
www.gamma-rs.ch