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In this section we describe the flow of signals from the tiles and receivers to the media converter (Medconv) servers, MWAX Correlator and then into Long Term Storage at the MWA Archive at the Pawsey Supercomputing Centre.
MWAX Media Conversion
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This section describes the data flow within the MWAX correlator servers. The function and data flow between components is shown in the below diagram:
MWAX UDP Capture + Voltage Capture To Disk
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The figure below shows the processing stages and data flows within the MWAX correlator FX Engine process.
The FX Engine treats individual 8 second sub-observations as independent work units. Most of its mode settings are able to change on-the-fly from one sub-observation to the next. Each 8 second sub-observation file contains 160 blocks of 50 ms of input data each. An additional block of metadata (of the same size as a 50 ms data block) is prepended to the data blocks, making a total of 161 blocks per sub-observation file. At the start of processing each new sub-observation file, the metadata block is parsed to configure the operating parameters for the following 160 data blocks.
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