|The resolution of audio ranging and imaging is heavily limited by bandwidth. Here is an attempt to increase the resolution through continuous basis pursuit, a grid-less sparse algorithm. Comparison of backprojection, basis-pursuit denoising, and continuous basis pursuit shown.
Hisham Bedri, Micha Feigin, Petros T. Boufounos, Ramesh Raskar; The IEEE International Conference on Computer Vision (ICCV) Workshops, 2015, pp. 26-31
Matlab Code: Code (readme coming soon)