ift-resolve 0.2

Radio imaging with information field theory

# resolve

Documentation: [http://ift.pages.mpcdf.de/resolve](http://ift.pages.mpcdf.de/resolve)

Resolve aims to be a general radio aperature synthesis algorithm. It is based on Bayesian principles and formulated in the language of information field theory. Its features include single-frequency imaging with either only a diffuse or a diffuse+point-like sky model as prior, single-channel antenna-based calibration with a regularization in temporal domain and w-stacking.

Resolve is in beta stage: You are more than welcome to test it and help to make it applicable. In the likely case that you encounter bugs, please contact me via [email](mailto:[e-mail]).

## Requirements

For running the installation script:

• Python version 3.7 or later.

• C++17 capable compiler, e.g. g++ 7 or later.

• pybind11>=2.6

• setuptools

• nifty8

Automatically installed by installation script:

• h5py

• matplotlib

• mpi4py

• numpy

• python-casacore

• scipy

Optional dependencies:

• astropy

• jax, jaxlib

## Installation

For a blueprint how to install resolve, you may look at the [Dockerfile](./Dockerfile).

For installing resolve on a Linux machine, the following steps are necessary. First install the necessary dependencies, for example via:

pip3 install –upgrade git+https://gitlab.mpcdf.mpg.de/ift/nifty.git@NIFTy_8 pybind11 setuptools

Optionally install afterwards:

pip3 install astropy jax jaxlib

Finally, clone the resolve repository and install resolve on your system:

git clone https://gitlab.mpcdf.mpg.de/ift/resolve cd resolve python3 setup.py install –user

## Related publications

• The variable shadow of M87* ([arXiv](https://arxiv.org/abs/2002.05218)).

• Unified radio interferometric calibration and imaging with joint uncertainty quantification ([doi](https://doi.org/10.1051/0004-6361/201935555), [arXiv](https://arxiv.org/abs/1903.11169)).

• Radio imaging with information field theory ([doi](https://doi.org/10.23919/EUSIPCO.2018.8553533), [arXiv](https://arxiv.org/abs/1803.02174v1)).

# Developers

## Generate compile-db

pip3 install compiledb CC=clang CXX=clang python3 setup.py build | compiledb rm -rf build