Radio synthesis imaging is dependent upon deconvolution algorithms to counteract the
sparse sampling of the Fourier plane. These deconvolution algorithms find an estimate of the …

We consider a troublesome form of nonisoplanatism in synthesis radio telescopes: noncoplanar
baselines. We present a novel interpretation of the noncoplanar baselines effect as …

Aims. We describe MS-MFS, a multi-scale multi-frequency deconvolution algorithm for wide-band
synthesis-imaging, and present imaging results that illustrate the capabilities of the …

The Australia SKA Pathfinder (ASKAP) is a new telescope under development as a world-class
high-dynamic-range wide-field-of-view survey instrument. It will utilize focal plane …

Imaging of very large objects with high resolution at radio wavelengths cannot be performed
by either a single dish or a radio interferometer alone, but requires the combination of …

Compressive sampling is a new paradigm for sampling, based on sparseness of signals or
signal representations. It is much less restrictive than Nyquist-Shannon sampling theory and …

This paper summarizes some of the major calibration and image reconstruction techniques
used in radio interferometry and describes them in a common mathematical framework. The …

We have conducted sensitive (1 σ< 30 μJy) 1.4 GHz radio observations with the Australia
Telescope Compact Array of a field largely coincident with infrared observations of the Spitzer …

We present the results of an Australia Telescope Compact Array 1.4 GHz spectropolarimetric
aperture synthesis survey of 34 deg 2 centered on Centaurus A–NGC 5128. A catalog of …

We have used the Very Large Array to search for ‘‘21-cm’’narrow-band signals from neutral
hydrogen at redshift Z= 3.4. We detect absorption at Z= 3.3968±0.0004 against a radio …