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5 papers · 2 filters
Interferometric imaging with the 32 element Murchison Wide-field Array
S. M. Ord, D. A. Mitchell, R. B. Wayth +56
The Murchison Wide-field Array (MWA) is a low frequency radio telescope, currently under construction, intended to search for the spectral signature of the epoch of re-ionisation (…
The Murchison Widefield Array
Daniel A. Mitchell, Lincoln J. Greenhill, Stephen M. Ord +57
It is shown that the excellent Murchison Radio-astronomy Observatory site allows the Murchison Widefield Array to employ a simple RFI blanking scheme and still calibrate visibiliti…
Alternative Adaptive Filter Structures for Improved Radio Frequency Interference Cancellation in Radio Astronomy
D. A. Mitchell, J. G. Robertson, R. J. Sault
In radio astronomy, reference signals from auxiliary antennas that receive only the radio frequency interference (RFI) can be modified to model the RFI environment at the astronomy…
Reference antenna techniques for canceling radio frequency interference due to moving sources
D. A. Mitchell, J. G. Robertson
We investigate characteristics of radio frequency interference (RFI) signals that can affect the excision potential of some interference mitigation algorithms. The techniques consi…
Enabling a High Throughput Real Time Data Pipeline for a Large Radio Telescope Array with GPUs
R. G. Edgar, M. A. Clark, K. Dale +5
The Murchison Widefield Array (MWA) is a next-generation radio telescope currently under construction in the remote Western Australia Outback. Raw data will be generated continuous…