LIGO Document T1600066-v1

New RCG 3.0 Decimation (IOP Upsampling / Downsampling) Filter for 16 kHz models

Document #:
LIGO-T1600066-v1
Document type:
T - Technical notes
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Abstract:
The real-time code generator (RCG) uses IIR low-pass filters for data decimation to go from the sample rate of the input-output processor (iop) to the sample rate used by an individual RCG model. These filters are described in LIGO-T1500075. The purpose of this note is to define a new decimation filter for the RCG model rate of 16384 /sec.
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Notes and Changes:
Erratum: The note describes the filter as being 6th order. This is wrong, the filter is 4th order (2 second-order-sections).

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