[Lofarpwg] PPF for LOFAR

[Benjamin Stappers]

Hi Evan,

I don’t have anything quickly to hand, but I can take a look. On the inversion,
we looked into some of this a long time back for the Cosmic Ray work and
I believe that there was a student, I could find out her name and details who
worked on that. However, my memory is such that while it is possible in theory
it isn’t actually possible unless you do a oversampled polyphase like the ASKAP
one and the one proposed for SKA-Low.

Cheers - Ben


On 11 Jun 2020, at 08:52, Evan Keane <evan.keane at gmail.com<mailto:evan.keane at gmail.com>> wrote:

Hi PWG,

Does anyone have to hand a paper/document/anything describing the LOFAR polyphase filterbank in the RSP boards, or a model for them? The kind of thing I could run on (say) some simulated Nyquist voltages to get a LOFAR RSP like response? And, related, any attempts to invert the polyphase filterbank?

Evan

--
Is mise le meas,
Dr. E. F. Keane

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***************************************************************
Ben Stappers
Head of Pulsar and Time Domain Astronomy Group
MeerTRAP Project Lead
Jodrell Bank Centre for Astrophysics
Department of Physics and Astronomy
The University of Manchester
Phone: +44 161 2754187
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