logosmallarcetri Arcetri Technical Report 2/2014

SKA Project Series
LFAA Signal Processing structure

G. Comoretto

INAF Osservatorio Astrofisico di Arcetri


The signal processing chain for the LFAA correlator, from ADC to the multiplier elementary cell, is described. The correlator adopts a FX architecture, with the frequency channelization implemented as a two stage polyphase filterbank. Delay compensation is performed after the first channelization, both in the time and in the frequency domain.

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