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NRAO/Socorro Colloquium Series

David Hawkins

Caltech/OVRO

Advances in digital technology (with application to radio astronomy)



Advances in digital technology and resulted in a new generation of 20 GHz clock-rate analog-to-digital converts (ADCs), and Field Programmable Gate Arrays (FPGs) with logic densities measured in the millions of processing elements (billions of transistors), core clock rates in the hundreds of Meganerts, and serial interconnect speeds in excess of 10Gbps.
This talk reviews these latest generation ADCs and FPGAs, and discusses the challenges associated with using them. These devices are currently being used to implement CARMA's new all-digital IF, where the 23-antenna, dual-polarization, receiver IFs from 1GHz to 9GHz will be sampled at 20GHz, digitally filtered and correlated using FPGAs.


October 12, 2012
11:00 am

Array Operations Center Auditorium

All NRAO employees are invited to attend via video, available in Charlottesville Room 230, Green Bank Room 137 and Tucson N525.

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