منابع مشابه
Astrophotonics: a new era for astronomical instruments.
Astrophotonics lies at the interface of astronomy and photonics. This burgeoning field has emerged over the past decade in response to the increasing demands of astronomical instrumentation. Early successes include: (i) planar waveguides to combine signals from widely spaced telescopes in stellar interferometry; (ii) frequency combs for ultra-high precision spectroscopy to detect planets around...
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One of the biggest problems faced by current and next-generation astronomical surveys is trying to produce large numbers of accurate cross identifications across a range of wavelength regimes with varying data quality and positional uncertainty. Until recently simple spatial “nearest neighbour” associations have been sufficient for most applications. However as advances in instrumentation allow...
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Model Based Systems Engineering (MBSE) is an emerging field of systems engineering for which the System Modeling Language (SysML) is a key enabler for descriptive, prescriptive and predictive models. This paper surveys some of the capabilities, expectations and peculiarities of tools-assisted MBSE experienced in real-life astronomical projects. The examples range in depth and scope across a wid...
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Using techniques from semantic data modeling and object-oriented data modeling, an astronomical data model is identiied as a kind of conceptual analysis. The general characteristics of such a model are presented, as well as its relationship to computer-based data structures and the FITS standard for transporting data. The eeective use of data models in relation to instrument speciic data, in co...
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ژورنال
عنوان ژورنال: Nature
سال: 1919
ISSN: 0028-0836,1476-4687
DOI: 10.1038/104343b0