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RRI-GBT multi-band receiver: motivation, design, and development

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dc.contributor.author Maan, Yogesh
dc.contributor.author Deshpande, Avinash A
dc.contributor.author Chandrashekar, Vinutha
dc.contributor.author Chennamangalam, Jayanth
dc.contributor.author Raghavendra Rao, K. B
dc.contributor.author Somashekar, R
dc.contributor.author Anderson, Gary
dc.contributor.author Ezhilarasi, M. S
dc.contributor.author Sujatha, S
dc.contributor.author Kasturi, S
dc.contributor.author Sandhya, P
dc.contributor.author Bauserman, Jonah
dc.contributor.author Duraichelvan, R
dc.contributor.author Amiri, Shahram
dc.contributor.author Aswathappa, H. A
dc.contributor.author Barve, Indrajit V
dc.contributor.author Sarabagopalan, G
dc.contributor.author Ananda, H. M
dc.contributor.author Beaudet, Carla
dc.contributor.author Bloss, Marty
dc.contributor.author Dhamnekar, Deepa B
dc.contributor.author Egan, Dennis
dc.contributor.author Ford, John
dc.contributor.author Krishnamurthy, S
dc.contributor.author Mehta, Nikhil
dc.contributor.author Minter, Anthony H
dc.contributor.author Nagaraja, H. N
dc.contributor.author Narayanaswamy, M
dc.contributor.author O'Neil, Karen
dc.contributor.author Raja, Wasim
dc.contributor.author Sahasrabudhe, Harshad
dc.contributor.author Shelton, Amy
dc.contributor.author Srivani, K. S
dc.contributor.author Venugopal, H. V
dc.contributor.author Viswanathan, Salna T
dc.date.accessioned 2013-01-16T11:14:46Z
dc.date.available 2013-01-16T11:14:46Z
dc.date.issued 2013-01
dc.identifier.citation The Astrophysical Journal Supplement Series, Vol. 204, No.1, 12 en
dc.identifier.issn 1538-4357
dc.identifier.uri http://hdl.handle.net/2248/5967
dc.description Open Access en
dc.description.abstract We report the design and development of a self-contained multi-band receiver ( MBR ) system, intended for use with a single large aperture to facilitate sensitive and high time-resolution observations simultaneously in 10 discrete frequency bands sampling a wide spectral span (100-1500 MHz) in a nearly log-periodic fashion. The development of this system was primarily motivated by need for tomographic studies of pulsar polar emission regions. Although the system design is optimized for the primary goal, it is also suited for several other interesting astronomical investigations. The system consists of a dual-polarization multi-band feed (with discrete responses corresponding to the 10 bands pre-selected as relatively radio frequency interference free), a common wide-band radio frequency front-end, and independent back-end receiver chains for the 10 individual sub-bands. The raw voltage time sequences corresponding to 16 MHz bandwidth each for the two linear polarization channels and the 10 bands are recorded at the Nyquist rate simultaneously. We present the preliminary results from the tests and pulsar observations carried out with the Robert C. Byrd Green Bank Telescope using this receiver. The system performance implied by these results and possible improvements are also briefly discussed. en
dc.language.iso en en
dc.publisher IOP Publishing en
dc.relation.uri http://dx.doi.org/10.1088/0067-0049/204/1/12 en
dc.relation.uri http://iopscience.iop.org/0067-0049/204/1/12/ en
dc.rights © IOP Publishing en
dc.subject Instrumentation: Miscellaneous en
dc.subject Instrumentation: Polarimeters en
dc.subject Methods: Observational en
dc.subject Pulsars: General en
dc.subject Pulsars: Individual (B0329+54, B0809+74) en
dc.title RRI-GBT multi-band receiver: motivation, design, and development en
dc.type Article en

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