Zobrazeno 1 - 10
of 41
pro vyhledávání: '"T.K. Gunaratne"'
Autor:
Mitchell B. Mickaliger, T.K. Gunaratne
Publikováno v:
2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
An end-to-end simulation has been conducted in order to verify the performance of the pulsar search (PSS) signal chain for the Square Kilometre Array Phase-1 (SKA1) Central Signal Processor (CSP) for the Mid Telescope. This simulation considered comb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac5732b8ee679ab7c7ea854d4d138960
https://doi.org/10.23919/ursigass51995.2021.9560600
https://doi.org/10.23919/ursigass51995.2021.9560600
The roll-out plan for Square Kilometer Array (Phase 1) (SKA1) Mid Frequency Telescope calls for five array assemblies which progressively integrate an increasing number of receptors and capabilities. The TALON Demonstration Correlator (TDC) is a smal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c294824961c9786e1248c09b50238403
https://nrc-publications.canada.ca/eng/view/object/?id=786e2740-4c55-49ae-8901-8d6f7a8af027
https://nrc-publications.canada.ca/eng/view/object/?id=786e2740-4c55-49ae-8901-8d6f7a8af027
Publikováno v:
Modeling, Systems Engineering, and Project Management for Astronomy IX.
We present an end-to-end model of the signal-chain of the correlator and beamformer of the Square Kilometre Array Phase 1 Mid telescope. The objective of this model is to determine whether the proposed signal processing architecture can meet the SKA
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4154994508afca96d986963c92678635
https://doi.org/10.1117/12.2559754
https://doi.org/10.1117/12.2559754
Autor:
Adriaan Peens-Hough, T.K. Gunaratne
Publikováno v:
2019 RFI Workshop - Coexisting with Radio Frequency Interference (RFI).
Radio Frequency Interference (RFI) has become a great challenge for the highly sensitive next-generation radio telescopes such as the Square Kilometre Array (SKA). The SKA phase-1 Mid frequency (SKA1-Mid) telescope is exposed to RFI from aeronautical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ec4caae6e4ac27e7a5dea3aafc18653
https://doi.org/10.23919/rfi48793.2019.9111712
https://doi.org/10.23919/rfi48793.2019.9111712
The Square Kilometre Array (SKA) Phase 1 Mid Correlator Beamformer (Mid.CBF) adopts two novel methods to mitigate radio frequency interference (RFI) at the various stages of its signal chains. First, the pioneering Sample Clock Frequency Offset (SCFO
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05a7bb46262a33171d7c81c4127825e2
http://hdl.handle.net/20.500.12386/28809
http://hdl.handle.net/20.500.12386/28809
Autor:
Viduneth Ariyarathna, Vitor A. Coutinho, Len T. Brutons, Renato J. Cintra, Ravi T. Wijesekara, Arjuna Madanayake, Sravan Pulipati, T.K. Gunaratne, Chamira U. S. EdussooriyaD
Publikováno v:
2018 Moratuwa Engineering Research Conference (MERCon).
This paper presents the implementation of a two-dimensional (2-D) finite-impulse-response (FIR) trapezoidal filter based beamforming array receiver. A 2.4 GHz 16-element receive-mode IQ array is designed and used for physically measuring the beam pat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4e765d76bd94c6d5142f9cd74c33f0e
https://doi.org/10.1109/mercon.2018.8421921
https://doi.org/10.1109/mercon.2018.8421921
Autor:
B. Carlson, T.K. Gunaratne
Publikováno v:
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
In the proposed sample clock frequency offset (SCFO) scheme, the received signals at each antenna of the Square Kilometre Array Mid Telescope Array are sampled at slightly different sample rates. Subsequently, these sampled sequences are digitally re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d6750155dbac800dfac3a4e0b84233c
https://doi.org/10.23919/ursigass.2017.8105156
https://doi.org/10.23919/ursigass.2017.8105156
Publikováno v:
2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS).
The ‘TALON’ architecture has been proposed to meet the unprecedented processing requirements and flexibility required for the Square Kilometre Array-Phase-1 (SKA1) Mid telescope, Correlator & Beamformer (Mid. CBF). The high-performance hardware p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e5401b7a42c15a92f39df173d0bb7f5
https://doi.org/10.23919/ursigass.2017.8104971
https://doi.org/10.23919/ursigass.2017.8104971
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 60:1845-1856
A low-complexity multirate 3-D spatio-temporal FIR cone and frustum filter structure is proposed having potential applications as a spatio-temporal directional filter. The cone filter structure employs a 1-D modified discrete Fourier transform (DFT)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efe60c0a8ea96073c54159b083c7d494
https://doi.org/10.1109/tcsi.2012.2230511
https://doi.org/10.1109/tcsi.2012.2230511
Autor:
Arjuna Madanayake, Donald G. Dansereau, T.K. Gunaratne, Stefan B. Williams, Chamith Wijenayake, L.T. Bruton
Publikováno v:
IEEE Circuits and Systems Magazine. 13:10-43
Advances in the performance of VLsi circuits are leading to a number of emerging applications of multidimensional (md) filters. Early progress was focused on the numerical design of two dimensional (2-d) transfer functions and the challenging stabili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d17e39e7d5ab7319ebe2892e282d0b4
https://doi.org/10.1109/mcas.2012.2237141
https://doi.org/10.1109/mcas.2012.2237141