Nancay_CoDeDi_Pulsar_Machine - david-macmahon/wiki_convert_test GitHub Wiki

The Nancay CoDeDi Pulsar Machine is a high-speed spectrometer intended for coherent dedispersion applications.

People

Berkeley: Don Backer

KAT: Peter McMahon

ASTRON/Amsterdam: Joeri van Leeuwen

Nancay: Ismael Cognard, Gilles Theureau

NRAO CV: Paul Demorest

Instrument Overview

This instrument is in the prototype stage. A first version was deployed in August 2008. It incorporates the IBOB spectrometer to a single CPU single GPU computer server, and has observed its first pulsar.

The overall architecture of this class of instrument is as follows:

NancayCoDeDiSpecArchitecture.png

A spectrometer (IBOB-based) channelizes a 400MHz (perhaps wider) bandwidth and distributes the resulting complex voltages from each band to different compute servers, which perform coherent dedispersion in real-time.

At a high level the IBOB design will look like this:

NancayCoDeDiSpecIBOB.png