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:
- S. I. Kelly and M. E. Davies, A fast decimation-in-image back-projection algorithm for SAR. IEEE Radar Conference, pp. 1046-105, 2014.
- S. I. Kelly, C. Du, G. Rilling and M.E. Davies, Advanced Image Formation and Processing of Partial SAR Data. IET Signal Processing Journal, vol 6(5), pp 511-520, 2012
- S.I. Kelly, G. Rilling, M.E Davies and B. Mulgrew, Iterative Image Formation using Fast (Re/Back)-projection for Spotlight-mode SAR. IEEE Radar Conference, 2011.
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