New RCG 3.0 DAQ Decimation (Downsampling) Filters

Document #:

LIGO-T1600059-v2

Document type:

T - Technical notes

Abstract:

This note describes new digital decimation filters to be used in the DAQ when archiving channels at a data rate that is lower than their RCG model rate.

Files in Document:

• DAQDecimationFiltersNew.pdf (1.1 MB)

Other Files:

• DAQDecimationFiltersNew.docx (307.0 kB)

Topics:

• Data Acquisition System

Authors:

• Peter Fritschel

Notes and Changes:

v2: Fixed normalization so that DC gain is unity.
added a link to downsampling filters used by the IOP

Related Documents:

• LIGO-T1600066: New RCG 3.0 Decimation (IOP Upsampling / Downsampling) Filter for 16 kHz models

Referenced by:

• LIGO-T1400719-v1: A Note on the DAQ Decimation (Downsampling) Filters (Prior to RCG 3.0)