General Information¶
This plugin generates derived SAR parameters (viz. vegetation indices, polarimetric decomposition parameters) from input polarimetric matrix (C3, T3, C2, T2). The input data needs to be in [PolSARpro](https://earth.esa.int/web/polsarpro/home)/[ENVI](https://www.l3harrisgeospatial.com/Software-Technology/ENVI) format (*.bin and *.hdr). It requires [numpy](https://numpy.org/), [matplotlib](https://matplotlib.org/) python libraries pre-installed.
Installation¶
> __Note:__ SAR tools requires QGIS version >=3.0.
- The easiest way (requires internet connection) :
Open QGIS -> Plugins -> Manage and Install Plugins… -> select
`All`
tab -> search for`SAR tools`
–> select and install plugin
- Alternative way (offline installation) :
Go to [releases](https://github.com/Narayana-Rao/SAR-tools/releases) of this repository -> select desired version -> download the
`.zip`
file.Open QGIS -> Plugins -> Manage and Install Plugins… ->
`install from ZIP`
tab –> select the downloaded zip –> install plugin (ignore warnings, if any).
Available functionalities:¶
- Indices :
Radar Vegetation Index (RVI) (Full-pol and dual-pol)
Generalized volume Radar Vegetation Index (GRVI)
Polarimetric Radar Vegetation Index (PRVI) (Full-pol and dual-pol)
Dual-pol Radar Vegetation Index (DpRVI)
Degree of Polarization (DOP) (Full-pol, dual-pol, and compact-pol)
Compact-pol Radar Vegetation Index (CpRVI)
- Polarimetric Decompositions :
Model free 3-Component decomposition for full-pol data (MF3CF).
Model free 3-Component decomposition for compact-pol data (MF3CC)
Improved S-Omega decomposition for compact-pol data (iS-Omega)