OMP reconstructions of the object a), radio emission from 3C58, using the BDCT as the sparsifying basis. The original object is 160 × 160 pixels and measurements are simulated from 100 antennas. Reconstructions are run with measurements from a URA in b) (RE = 0.0082), an NRA of 0.14 in c) (RE = 0.0028), and the VLA-based “Y” array in d) (RE = 0.0137). All pixel brightness values in the object and reconstructions are normalized by the object’s maximum pixel brightness value, to lie on [0, 1]. Image a) can be found at http://images.nrao.edu/529 (courtesy of NRAO/AUI and M. Bietenholz, York University).
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