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4 results on '"Viou, C."'

1. NenUFAR: Instrument description and science case

Author

Zarka, P., primary, Tagger, M., additional, Denis, L., additional, Girard, J. N., additional, Konovalenko, A., additional, Atemkeng, M., additional, Arnaud, M., additional, Azarian, S., additional, Barsuglia, M., additional, Bonafede, A., additional, Boone, F., additional, Bosma, A., additional, Boyer, R., additional, Branchesi, M., additional, Briand, C., additional, Cecconi, B., additional, Celestin, S., additional, Charrier, D., additional, Chassande-Mottin, E., additional, Coffre, A., additional, Cognard, I., additional, Combes, F., additional, Corbel, S., additional, Courte, C., additional, Dabbech, A., additional, Daiboo, S., additional, Dallier, R., additional, Dumez-Viou, C., additional, El Korso, M. N., additional, Falgarone, E., additional, Falkovych, I., additional, Ferrari, A., additional, Ferrari, C., additional, Ferriere, K., additional, Fevotte, C., additional, Fialkov, A., additional, Fullekrug, M., additional, Gerard, E., additional, Griebmeier, J.-M., additional, Guiderdoni, B., additional, Guillemot, L., additional, Hessels, J., additional, Koopmans, L., additional, Kondratiev, V., additional, Lamy, L., additional, Lanz, T., additional, Larzabal, P., additional, Lehnert, M., additional, Levrier, F., additional, Loh, A., additional, Macario, G., additional, Maintoux, J.-J., additional, Martin, L., additional, Mary, D., additional, Masson, S., additional, Miville-Deschenes, M.-A., additional, Oberoi, D., additional, Panchenko, M., additional, Pandey-Pommier, M., additional, Petiteau, A., additional, Pincon, J.-L., additional, Revenu, B., additional, Rible, F., additional, Richard, C., additional, Rucker, H. O., additional, Salome, P., additional, Semelin, B., additional, Serylak, M., additional, Smirnov, O., additional, Stappers, B., additional, Taffoureau, C., additional, Tasse, C., additional, Theureau, G., additional, Tokarsky, P., additional, Torchinsky, S., additional, Ulyanov, O., additional, van Driel, W., additional, Vasylieva, I., additional, Vaubaillon, J., additional, Vazza, F., additional, Vergani, S., additional, Was, M., additional, Weber, R., additional, and Zakharenko, V., additional

Published
2015
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2. A single-FPGA real-time dual beam-former with FX correlation capabilities. First results at the Nançay radio telescope with the FAN antenna array

Author

Deschamps, H., primary, Viou, C., additional, Pezzani, J., additional, Abbon, P., additional, Ansari, R., additional, Beigbeder, C., additional, Breton, D., additional, Caceres, T., additional, Charlet, D., additional, Flouzat, C., additional, Kestener, P., additional, Magneville, C., additional, Mansoux, B., additional, Pailler, C., additional, Taurigna, M., additional, and Yeche, C., additional

Published
2012
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4. A Single-FPGA Real-Time Dual Beam-Former With FX Correlation Capabilities: First Results at the Nançay Radio Telescope With the FAN Antenna Array.

Author

Deschamps, H., Viou, C., Pezzani, J., Abbon, P., Ansari, R., Beigbeder, C., Breton, D., Caceres, T., Charlet, D., Flouzat, C., Kestener, P., Magneville, C., Mansoux, B., Pailler, C., Taurigna, M., and Yeche, C.

Subjects
*RADIO telescopes, *ANTENNA arrays, *FIELD programmable gate arrays, *DARK energy, *COMPUTER firmware, *RADIO sources (Astronomy)
Abstract

A full-time beam-former for two independent antenna groups, with visibility computation capabilities at a slower rate, has been formerly designed on a single FPGA for the BAO-radio instrument, a radio telescope demonstrator for the study of dark energy by the observation of Baryonic Acoustic Oscillations (BAO) spectrum with HI probing technique. On the same hardware platform, a firmware, dedicated for the Focal Array at Nançay (FAN) project, can provide a full-time dual beam-forming on a single antenna array. It can process an incoming data flow of twelve channels, each organized as complex spectrum (2\,\times\,8 bits) of 4096 frequencies with a 4 GbPS effective rate. The dual-beam capability of the system has been successfully tested on the FAN array with transits on the radio sources CasA and 3C123, the beam-former being configured by complex coefficients computed from a previous off-line software correlation on CasA. Recently, another beam-forming on 3C123 has been done after a calibration on CasA performed by the beam-former itself, set in correlation mode, and a source-tracking. [ABSTRACT FROM AUTHOR]

Published
2013
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