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General AAVS Schedule

AA-mid Strategy to proceed to SRR & next steps Author Andrew Faulkner AA dCoDR : 23 November 2011. General AAVS Schedule. AA-mid Individual tile demonstrators AAVS0 2011 Single array performance demonstrator AAVS1 2013 multi-array interferometer performance demonstrator AAVS2 2016

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General AAVS Schedule

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  1. AA-mid Strategy to proceed to SRR & next steps Author Andrew FaulknerAA dCoDR: 23 November 2011

  2. General AAVS Schedule AA-mid Individual tile demonstrators AAVS0 2011 Single array performance demonstrator AAVS1 2013 multi-array interferometer performance demonstrator AAVS2 2016 SKA1 capable costed design 2016 AA system AA-low and AA-mid AA-CoDR 2011 SKA2technology roadmap & costed system design 2014 AA-mid SRR not yet fixed but will be 1Q2013 The work will be affected by the WBS being undertaken and the SoW for SKA PEP

  3. Digital processing architectures • AAVS0 • EMBRACE processing • AAVS1 – use similar processors to AA-low deployment • UNIBOARD per AA-low AAVS1 • AAVS2 – Updated for current programmable devices • UNIBOARDx per AA-low AAVS2 • SKA2 Deployment…. • Upgraded to the then current generation devices

  4. Decisions, decisions.... • Front-end • Element type Vivaldi or ORA • Element pitch Frequency range and performance • LNA Single ended or differential • Signal processing • Beamforming Split analogue/digital • Data rates e.g.Tile to Station Processor • Physical • Tiles Split or contiguous • Station processing Location etc. etc.

  5. Principal design option decisions • AA-mid element selection Q4 2014 • Vivaldi or ORA • Take forward viable designs through AAVS1 • Decision prior to AAVS2 PRR • Processing Architecture Q1 2013 & 2015 • AAVS0 & 1: not critical for processing hardware • Choose actual devices as late as possible • Decision after AAVS2, for build decision on SKA implementation

  6. Critical design aspects 1. An acceptable cost level 2. An acceptable power level 3. Reduction of the system noise temperature 4. Scalability 5. Calibrateability 6. A verified performance for radio astronomy A lot of focus on: Cost & Power

  7. Summary Progression over many years leading to SKA AA-mid finalising specifications: DRM, system SRR AA-mid on an SKA2 timescale Progressive development through AAVS0-2 Options and selection available

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