The European Space Agency is making NEST available free of charge to the user community

 

NEST is moving to its new home at

https://earth.esa.int/web/nest/

 

The Next ESA SAR Toolbox (NEST) is an open source (GNU GPL) toolbox for reading, post-processing, analysing and visualising the large archive of data (from Level 1) from ESA SAR missions including ERS-1 & 2, ENVISAT and in the future Sentinel-1. In addition, NEST supports handling of products from third party missions including JERS-1, ALOS PALSAR, TerraSAR-X, RADARSAT1&-2 and Cosmo-Skymed. NEST has been built using the BEAM Earth Observation Toolbox and Development Platform.

Architecture Highlights

  • ♦ Display and Analysis Tool (DAT): integrated graphical user-friendly interface
  • ♦ Graph Processing Framework (GPF): user-defined processing chains
  • ♦ Graphical or command-line execution
  • ♦ Tiled memory management for working with very large data products
  • ♦ Data abstraction models to handle all SAR missions in a common way
  • ♦ Modular design for easy modifications and upgrades
  • ♦ Users are able  to add their own modules via APIs
  • ♦ Multithreading and Multi-core processor support
  • ♦ Integrated WorldWind visualisation

Main Features

  • ♦ Product library for scanning and cataloging large archives efficiently
  • ♦ Absolute calibration (ENVISAT ASAR, ERS 1&2, ALOS PALSAR, RADARSAT-2, TerraSAR-X, Cosmo-SkyMed)
  • ♦ Multilooking & speckle (single and multitemporal) filtering
  • ♦ ERS/ASAR precise orbit handling (Doris, Prare and Delft orb.)
  • ♦ Automatic Coregistration of detected and complex products
  • ♦ Range-Doppler and SAR Simulation Terrain Correction
  • ♦ Radiometric normalization during Terrain Correction
  • ♦ Ellipsoid correction, Map Reprojection, Mosaicking
  • ♦ Statistics, Data Analysis and ROI tools
  • ♦ Export to GeoTiff, HDF 4 & 5, NetCDF, PolSARPro, Envi formats
  • ♦ Subset, Resample and Band Arithmetic
  • ♦ LUT and Layer Management
  • ♦ Automatic DEM download and tile selection (SRTM, ASTER, etc)
  • ♦ Debursting of ASAR WSS
  • ♦ Ocean tools: basic routines for oil spill detection, ship detection and wind field estimation from SAR data
  • ♦ Fully integrated and featured InSAR processor (jLinda) for Strimap and Zero-Doppler focused data
  • Compatibility with PolSARpro Toolbox  (Reader, Writer)

NEST is being developed by Array Systems Computing Inc. of Toronto Canada under ESA Contract number 20698/07/I-LG.  InSAR functionalities are being developed by PPO.labs and Delft University of Technology.


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Frequently Asked Questions

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