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Proceedings Paper

SPARTA: the ESO standard platform for adaptive optics real time applications
Author(s): Enrico Fedrigo; Robert Donaldson; Christian Soenke; Richard Myers; Stephen Goodsell; Deli Geng; Chris Saunter; Nigel Dipper
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Paper Abstract

ESO is starting a number of new projects collectively called Second Generation VLT instrumentation. Several of them will use Adaptive Optics (AO). In comparison with today's ESO AO systems, the 2nd Generation VLT AO systems will be much bigger (in terms of degrees of freedom) and faster (in terms of loop frequency). Consequently the Real-Time Computer controlling these AO systems will be significantly bigger and more challenging to build compared with today's AO systems in operation. To support the new requirements ESO started the development of a common flexible platform called SPARTA for Standard Platform for Adaptive optics Real Time Applications. The guidelines along which SPARTA is developed recognize the importance of industry standards over custom development to lower the development costs, ease the maintenance and make the system upgradeable thus delivering the performance required. SPARTA is based on a hybrid architecture that comprises all the major computing architectures available today: the high computational throughput is achieved through the combination of FPGA and DSP usage, where DSP are used as fast coprocessors and FPGA are used as front and as communication infrastructure, thus guaranteeing also the low latency. The flexibility is spread between the usage of both high-end CPUs and again the DSPs. All three technologies are organized in a parallel system interconnected by fast serial fabrics based on standard protocols. External input / output interfaces are also based on industry standard protocols, thus enabling the usage of commercially available tools for development and testing.

Paper Details

Date Published: 27 June 2006
PDF: 10 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 627210 (27 June 2006); doi: 10.1117/12.671919
Show Author Affiliations
Enrico Fedrigo, European Southern Observatory (Germany)
Robert Donaldson, European Southern Observatory (Germany)
Christian Soenke, European Southern Observatory (Germany)
Richard Myers, Durham Univ. (United Kingdom)
Stephen Goodsell, Durham Univ. (United Kingdom)
Deli Geng, Durham Univ. (United Kingdom)
Chris Saunter, Durham Univ. (United Kingdom)
Nigel Dipper, Durham Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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