R2

What's new in this release:

• InSAR workflow:
  • Added layover/shadow mask generation
  • Added rubbersheeting step
  • Added support for PHASS unwrapping algorithm
  • Added support for fine resampling using geometry + dense offsets
  • Added GPU support for geocoding (bilinear interpolation method only)
  • Improved serialization performance of Topo layers leveraging multi-threaded I/O
• GSLC/GCOV/GUNW workflows:
  • Added radar grid metadata cubes to GSLC & GUNW workflows
  • Added DEM interpolation option to GCOV workflow
  • Added polarimetric symmetrization option to GCOV workflow
  • Update GCOV to allow a different output coordinate system than the original DEM coordinate system
  • Update GCOV to read only the RSLC subset that is needed for processing
• RSLC workflow:
  • Updated to handle both old & new versions of the L0B product format
• Bug fixes:
  • Fixed an issue that caused the NetCDF driver to fail to load geocoded products
  • Fixed an issue that sometimes caused artifacts in geocoded rasters due to insufficient DEM margin for interpolation
  • Fixed an issue with interpolation of non-zero Doppler data in the GSLC workflow
  • Fixed incorrect handling of the dateline crossing in DEM staging

R1.1.1

This is an informal point release that adds capabilities for the upcoming SDS load test.

What's new in this release:

• Added GPU support for amplitude cross-correlation using PyCuAmpcor
• Added (GPU-only) dense offset estimation to InSAR workflow
• Added python bindings for PHASS phase unwrapper
• Updated the RSLC workflow to baseband the resulting SLC product in range after focusing
• Added new antenna frame coordinate system transformations
• Added product readers for NISAR antenna, orbit, and attitude products
• Added GCOV workflow options to output sigma0 and interpolated DEM
• Populated some missing metadata in generated RSLC & GSLC products
• Fully converted python bindings from cython to pybind11
• Bug fixes:
  • Fixed issues with upsampling in CUDA crossmul
  • Fixed a mixup between acquired PRF and processed PRF that resulted in geolocation errors in ALOS-1 processing
• Updated dependencies:
  • Dropped support for GCC < 7.0
  • Dropped support for CUDA Toolkit < 11.0
  • Dropped support for CMake < 3.18
  • Removed cython dependency

R1.1

v0.2.0

Release 0.2.0

R1.1-ER

This is an engineering release for the upcoming R1.1 release. It includes updates to existing NISAR SAS workflows as well as partial InSAR workflow implementation.

What's new in this release:

• Update directory layout to change instances of 'isce' to 'isce3'
• Update GCOV workflow to add optional support for computing off-diagonal terms
• Migrate python bindings to use pybind11 (legacy cython bindings are deprecated and will be removed in a future release)
• Add new rdr2geo, geo2rdr, and resampslc workflows (CPU + GPU)
• Add new partial GUNW workflow
• Add new DEM stager workflow
• Add python bindings for ICU phase unwrapper
• Improve compatibility with Eigen data structures
• Improve NISAR metadata population and validation
• Update dependencies:
  • Drop support for CMake < 3.14
  • Drop support for pybind11 < 2.5
  • Drop support for pyre < 1.9.9
  • Add dependency on shapely
  • Remove dependency on cereal

R1

First scheduled release to SDS

Add initial implementations of the following NISAR SAS workflows:

• L1 RSLC (CPU & GPU)
• L2 GSLC (CPU)
• L2 GCOV (CPU)