Iterative Image Formation using Fast (Re/Back)-projection for Spotlight-mode SAR

This code provides a simple demo of the iterative image formation from partial SAR data using a fast Re/Back projection operators. The demo file uses the spg algorithm with the operators, to find a sparse approximation. Currently, the code is set on the decimation in phase history, while it can run in a decimation in image domain mode. In the latter case, the user should increase the oversampling (less oversampling can be used if a more sophisticated NUFT is utilised).

When using this code please cite the relevant papers below:

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