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The anatomy of a high speed data acquisition system
--client
lca
--show
lca2013
--room MCC3 1630 --force
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Author(s):
Jonathan Woithe
Location
MCC3
Date
jan Thu 31
Days Raw Files
Start
11:35
First Raw Start
error-in-template
Duration
0:45:00
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None
End
12:20
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None min.
http://lca2013.linux.org.au/schedule/30300/view_talk
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As the Linux kernel continues to gain features which permit it to operate with lower scheduling latencies, it is becoming increasingly feasible to utilise systems running stock kernels for high speed data acquisition in applications such as radar. This makes such applications much more accessible to both developers and end users. However, having low scheduling latency is not enough to ensure smooth operation of the system. The acquisition software itself must also be carefully designed to ensure it can keep up with the data as it arrives and distribute it to analysis processes. After briefly describing the needs of a radar system, this talk will outline the various programming approaches and techniques utilised in the implementation of a radar data acquisition system and explore the reasons behind the choices made. The presentation will be aimed at developers who have not necessarily worked with data acquisition before.
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