Atacama Large Millimeter/submillimeter ArrayExpanded Very Large Array

Robert C. Byrd Green Bank TelescopeVery Long Baseline Array

FPGA Spectrometer for the GBT

NRAO and U.C. Berkeley JointConceptual Design ReviewJanuary 31, 2011

GBT

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Introduction• Table of contents

• Overall project plan - Bloss• Spectrometer specification and overall design – Ford &

Roshi• ADC characterization - Bussa• Analog and clock distribution detailed design - Watts• 1 PPS and Switching signal synch and distribution plan -

McCullough• Firmware design and development strategies -

Wertheimer• Software design and development plan – Shelton• Project risks and mitigation strategies – Ford

GBTParticipants - Jay Lockman, ChairReviewers:

• Karen O’Neil• Scott Ransom• Richard Prestage• Tony Remijan• Toney Minter• Dave Frayer• Ron Maddalena• Glen Langston • Rick Fisher• Rich Lacasse• Matt Morgan• Roger Norrod• Steve White• Chris Clark

Project Team:• John Ford• Amy Shelton• Anish Roshi• Dan Werthimer• Terry Filiba• Mark Wagner• Galen Watts• Patrick Brandt• Mark Whitehead• Randy McCullough• Jason Ray• Joe Masters• Bob Garwood• Srikanth Bussa

GBTCharge to ParticipantsThe purpose of the Preliminary Design Review for the Green

Bank Spectrometer is to validate that the designs and plans presented, to the extent they can be evaluated at this point in the project, meet the guidelines for the new spectrometer by:

1. Satisfying the science case2. Addressing all of the specifications3. Meeting the requirements of the ATI grant

description4. Appearing to be technically and financially

viable5. Being able to be completed in accordance with

the grant and project schedules6. Identifying the risks of the project, their

potential effect, and demonstrating a satisfactory mitigation plan for each risk

GBTATI Grant Award Details• Science case – Upcoming in next presentations• Schedule

• 36 months• September 1, 2010 – August 31, 2013

• Total Budget - $ 1.27MM ($1.1MM Grant + $170K NRAO Cost Share)

• Hardware• Staffing – Who does what?

• Science case and system specifications – NRAO & Berkeley

• System design and programming – Berkeley• Integration into GB systems – NRAO

GBTEquipment Budget: $435,441

GBTStaffing (ATI Proposal)

Staff Contributions:NRAO – 1.96 FTEsBerkeley – 1.41 FTEs

GBTOperational Staffing

Staff Contributions:NRAO – 3.15 FTEsBerkeley – 2.50 FTEs

GBTSchedule• Award Schedule:

• Schedule flow chart

• Project chart view