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Summary, Conclusions and Actions Marco de Vos ([email protected]) AAVP 2010 Summary, Conclusions & Actions Marco de Vos What did we do? • SPDO shared current status and baselines for the SKA • Community shared science cases for AA-low and AA-mid • AAVP partners shared technological developments Mutual appreciation needs to grow. AAVP 2010 Summary, Conclusions & Actions Marco de Vos What did we learn? • Much technological potential Antenna element, LNA, interconnect, ... Configuration, calibration, ... • Potential science at the edges of the current SKA1 specs E.g. detecting the Extended Dark Ages @ 50...100 MHz • System-level considerations “Be Dense” – the case for two elements The Processing Balance – maximize A/T within cost-cap Need to integrate individual reseach projects into coherent program. Key vehicle: AAVS1 -> AAVS2 -> … AAVP 2010 Summary, Conclusions & Actions Marco de Vos What did we miss? • Still an over-emphasis on receptor technology Station-level digital processing (not just BF!!!) is as important Processing requirements (HPC) as they develop over time • Power is still mostly an afterthought. Antenna element, LNA, interconnect, ... Configuration, calibration, ... • Industry involvement not addressed. • Clear goals for the verification systems still missing. System design ≠ system engineering. Deep understanding versus strickt process. AAVP 2010 Summary, Conclusions & Actions Marco de Vos What did we gain? • We’ve been exercising a new interaction model SPDO <> AAVP Preparing for the PEP phase (2013-2016) “Gently bringing the news that the SKA is becoming an engineering project very quickly.” “It’s about the system, not the elements” “It would be great if we could build a coherent project” “People start to realise that they need to start writing things up” AAVP 2010 Summary, Conclusions & Actions Marco de Vos What should we do? • Turn AAVP into a coherent program [AAVP MT] Further detailing of AAVS1, AAVS2 could facilitate this Maintain focus on SKA1+AIP/SKA2, full system • Analyse the impact of some science proposals [Community] Detection of Extended DA @ 50...100MHz in SKA1 ?? HI & pulsars with 2015 AIP AA-mid array if 1500m2 ?? • Engage AAVP and PathFinders in system baseline [SPDO] System requirements spec, top level SKA system design Together seek the clever tricks to keep SKA within cost cap. • Analyse several AA-system level trade-offs [AAVP] Continuous beam-shape cal. versus element calibration # elements, station size, station layout, ... Processing power SKA1 AA-low and AIP AA-mid AAVP 2010 Summary, Conclusions & Actions Marco de Vos What should we do? • Write things up in reviewable documents [AAVP, SPDO] • Read each other’s documents [all] • Prepare for PreConstruction Phase [AAVP SC] AA subsystem (PEP-WP6) Workpackage Consortium AAVP 2010 Summary, Conclusions & Actions Marco de Vos “We seem to have a plan..." • Optimise for imaging EoR @ 140MHz • Optimise for pulsars and HI @ 400MHz AAVP 2010 Summary, Conclusions & Actions Marco de Vos Thanks! • LOC: Andrew Faulkner (chair) Paul Alexander Karen Scrivener Nima Razavi-Ghods Eloy de Lera Acedo • SOC: AAVP 2010 Paul Alexander Arnold van Ardenne Peter Hall Andrew Faulkner Chris Carilli Lincoln Greenhill Luigina Feretti Ger de Bruyn Dave Deboer Michael Jones Joe Lazio Kobus Cloete Summary, Conclusions & Actions Marco de Vos