Compressed sensing for wide-field radio interferometric imaging

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Radio interferometry usually compensates for high levels of noise in sensor/antenna electronics by throwing data and energy at the problem: observe longer, then store and process it all. We propose instead a method to remove the noise explicitly before ima ...

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Context. Two main classes of imaging algorithms have emerged in radio interferometry: the CLEAN algorithm and its multiple variants, and compressed-sensing inspired methods. They are both discrete in nature, and estimate source locations and intensities on ...

Fast, label-free, high-resolution, three-dimensional imaging platforms are crucial for high-throughput in vivo time-lapse studies of the anatomy of Caenorhabditis elegans, one of the most commonly used model organisms in biomedical research. Despite the ne ...

The present invention is directed to methods and apparatuses for beamforming signals or compute beamformed signals. The present approach is to determine a series of beams from or for a set of devices configured for receiving signals from and/or transmittin ...

Data dimensionality reduction in radio interferometry can provide savings of computational resources for image reconstruction through reduced memory footprints and lighter computations per iteration, which is important for the scalability of imaging method ...

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Next-generation radio interferometers, such as the Square Kilometre Array (SKA), will revolutionise our understanding of the universe through their unprecedented sensitivity and resolution. However, to realise these goals significant challenges in image an ...

Imaging techniques in radio interferometry often face a significant challenge posed by the large number of antenna signals received, from which the image information needs to be extracted. Beam- forming is envisaged to reduce the rate required for transpor ...

Compressed sensing for wide-field radio interferometric imaging

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3D diffractive optics for linear interconnects and nonlinear processing

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The e-MERGE Survey (e-MERLIN Galaxy Evolution Survey): overview and survey description

Coordinate Descent with Bandit Sampling

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Low-dimensional data embedding for scalable astronomical imaging in the SKA telescope era

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Label-free three-dimensional imaging of Caenorhabditis elegans with visible optical coherence microscopy

Methods and apparatuses for versatile beamforming

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Exterior Convexity And Classical Calculus Of Variations

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Imaging in radio interferometry by iterative subset scanning using a modified amp algorithm