SARA-adaptive-ppd

Matlab code associated with the method developed in

A. Dabbech, A. Onose, A. Abdulaziz, R. A. Perley, O. M. Smirnov, Y. Wiaux, Cygnus A super-resolved via convex optimization from VLA data, Mon. Not. Roy. Astron. Soc., 476(3):2853–2866, 2018.

The code also uses a set of MATLAB scripts, published

A. Onose, A. Dabbech and Y. Wiaux, An accelerated splitting algorithm for radio-interferometric imaging: when natural and uniform weighting meet, Mon. Not. Roy. Astron. Soc., 469(1):938-949, 2017.

Note: The version of the code released with the paper publication is available on the v0 branch.

Setup: if needed, configure the paths in minimalist_script.m before running.

Dependencies: the present codes depend on the content of the measurement-operator github repository, loaded as a github submodule. This module contains codes associated with the following publications

J. A. Fessler and B. P. Sutton, Nonuniform Fast Fourier Transforms Using Min-Max Interpolation, IEEE Trans. Image Process., vol. 51, n. 2, pp. 560--574, Feb. 2003.

A. Dabbech, L. Wolz, L. Pratley, J. D. McEwen and Y. Wiaux, The w-effect in interferometric imaging: from a fast sparse measurement operator to superresolution, Mon. Not. Roy. Astron. Soc., 471(4):4300-4313, 2017.

Installation To properly clone the project with the content of the submodule, you may need to do follow one of set of instructions:

• cloning the repository

git clone --recurse-submodules https://github.com/basp-group/SARA-adaptive-ppd.git

• updating from an existing SARA-adaptive-ppd repository

git pull
git submodule sync --recursive # update submodule address, in case the url has changed
git submodule update --init --recursive # update the content of the submodules
git submodule update --remote --merge # fetch and merge latest state of the submodule