Title :
The BAO Radio Acquisition System
Author :
Charlet, Daniel ; Abbon, P. ; Ansari, R. ; Beigbeder, C. ; Breton, D. ; Cacérès, T. ; Deschamps, H. ; Flouzat, C. ; Kestener, P. ; Magneville, C. ; Mansoux, B. ; Pailler, C. ; Taurigna, M. ; Yèche, C.
Author_Institution :
Lab. de l´´accelerateur Lineaire, Univ. Paris XI, Orsay, France
Abstract :
The BAO radio instrument is a demonstrator of a radio telescope dedicated to cosmological studies and dark energy observation. It will analyze the signal emitted by the hydrogen in the universe with the aim of the detection of BAO´s (Baryon Acoustic Oscillations). The instrument will use cylindrical reflectors or a large number of small dishes associated with a digital beam-former correlator. The electronic chain covers a large frequency range (1.5 GHz) and has a high throughput rate (~300 MB/s).
Keywords :
array signal processing; cosmology; dark energy; data acquisition; radioastronomical techniques; radioastronomy; radiotelescopes; radiowave interferometry; BAO radio acquisition system; BAO radio instrument; baryon acoustic oscillations; cosmological studies; cylindrical reflectors; dark energy observation; digital beamformer correlator; electronic chain; radiotelescope; small dish array; Clocks; Dark energy; Field programmable gate arrays; Instruments; Optical fiber communication; Servers; Software; Data acquisition; interferometry; radio astronomy;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2011.2155085
