ISCE_INSAR/contrib/stack/README.md

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## Stack Processors
Read the document for each stack processor for details.
+ [stripmapStack](./stripmapStack/README.md)
+ [topsStack](./topsStack/README.md)
+ [alosStack](./alosStack/alosStack_tutorial.txt)
### Installation
To use a stack processor you need to:
1. Install ISCE as usual
2. Depending on which stack processor you need to try, add the path of the folder containing the python scripts to your `$PATH` environment variable as follows:
- add the full path of your **contrib/stack/topsStack** to `$PATH` to use the topsStack for processing a stack of Sentinel-1 TOPS data
- add the full path of your **contrib/stack/stripmapStack** to `$PATH` to use the stripmapStack for processing a stack of StripMap data
- set environment variable `$PATH_ALOSSTACK` by doing: export PATH_ALOSSTACK=CODE_DIR/contrib/stack/alosStack to use the alosStack for processing a stack of ALOS-2 data
Note: The stack processors do not show up in the install directory of your isce software. They can be found in the isce source directory.
#### Important Note: ####
There might be conflicts between topsStack and stripmapStack scripts (due to comman names of different scripts). Therefore users **MUST only** have the path of **one stack processor in their $PATH environment at a time**, to avoid conflicts between the two stack processors.
### References
Users who use the stack processors may refer to the following literatures:
For StripMap stack processor and ionospheric phase estimation:
+ H. Fattahi, M. Simons, and P. Agram, "InSAR Time-Series Estimation of the Ionospheric Phase Delay: An Extension of the Split Range-Spectrum Technique", IEEE Trans. Geosci. Remote Sens., vol. 55, no. 10, 5984-5996, 2017. (https://ieeexplore.ieee.org/abstract/document/7987747/)
For TOPS stack processing:
+ H. Fattahi, P. Agram, and M. Simons, “A network-based enhanced spectral diversity approach for TOPS time-series analysis,” IEEE Trans. Geosci. Remote Sens., vol. 55, no. 2, pp. 777786, Feb. 2017. (https://ieeexplore.ieee.org/abstract/document/7637021/)