NDLI: System Health in Locally Autonomic Radio-Telescopes

Content Provider	IEEE Xplore Digital Library
Author	van Veelen, M.
Copyright Year	2007
Description	Author affiliation: ASTRON, Dwingeloo (van Veelen, M.)
Abstract	The extreme sensitivity and flexibility of the LOFAR radio telescope is achieved through a large reception area (10,000-1,000,000 $m^{2}),$ wideband (0.2-4 GHz) signal processing and digital beam forming. The trend towards more local autonomy and resource sharing in the infrastructure and on-line real-time distributed calibration provides conditions for emergent behavior. However, scientific instruments need to be dependable and highly accurate. Hence potential undesirable emergent behavior must be controlled. The paper discusses computational intelligence to achieve early detection of emergent behavior. Locally autonomous computing will then validate the instrument stability based on a solid design theory from a consistent combination of non-deterministic models of computation, exact dynamic instrument models, and data-driven system health.
Starting Page	55
Ending Page	55
File Size	312106
Page Count	1
File Format	PDF
ISBN	0769528597
DOI	10.1109/CONIELECOMP.2007.100
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-19
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solid modeling Radio astronomy Stability Instruments Computational modeling Digital signal processing Calibration Resource management Wideband Computational intelligence
Content Type	Text
Resource Type	Article

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