Aa mid strategy to proceed to srr next steps author andrew faulkner aa dcodr 23 november 2011
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AA-mid Strategy to proceed to SRR & next steps AuthorAndrew Faulkner AA dCoDR : 23 November 2011. General AAVS Schedule. AA-mid Individual tile demonstratorsAAVS02011 Single array performance demonstratorAAVS12013 multi-array interferometer performance demonstratorAAVS22016

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General AAVS Schedule

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Aa mid strategy to proceed to srr next steps author andrew faulkner aa dcodr 23 november 2011

AA-mid Strategy to proceed to SRR & next steps AuthorAndrew FaulknerAA dCoDR: 23 November 2011


General aavs schedule

General AAVS Schedule

AA-mid Individual tile demonstratorsAAVS02011

Single array performance demonstratorAAVS12013

multi-array interferometer performance demonstratorAAVS22016

SKA1 capable costed design2016

AA systemAA-low and AA-mid AA-CoDR2011

SKA2technology roadmap & costed system design2014

AA-mid SRRnot yet fixed but will be 1Q2013

The work will be affected by the WBS being undertaken and the SoW for SKA PEP


Digital processing architectures

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


Decisions decisions

Decisions, decisions....

  • Front-end

    • Element typeVivaldi or ORA

    • Element pitchFrequency range and performance

    • LNASingle ended or differential

  • Signal processing

    • BeamformingSplit analogue/digital

    • Data rates e.g.Tile to Station Processor

  • Physical

    • TilesSplit or contiguous

    • Station processingLocation

      etc. etc.


Principal design option decisions

Principal design option decisions

  • AA-mid element selectionQ4 2014

    • Vivaldi or ORA

    • Take forward viable designs through AAVS1

    • Decision prior to AAVS2 PRR

  • Processing ArchitectureQ1 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


Critical design aspects

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


Summary

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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