Manx Arrays: Perfect Non-Redundant Interferometric Geometries

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Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2022-09-14
Major/Subject
Mcode
Degree programme
Language
en
Pages
8
Series
Radio Science, Volume 57, issue 9
Abstract
Interferometry applications (e.g., radio astronomy) often wish to optimize the placement of the interferometric elements. One such optimal criterion is a uniform distribution of non-redundant element spacings (in both distance and position angle). While large systems, with many elements, can rely on saturating the sample space, and disregard “wasted” sampling, small arrays with only a few elements are more critical, where a single element can represent a significant fraction of the overall cost. This paper defines a “perfect array” as a mathematical construct having uniform and complete element spacings within a circle of radius equal to the maximum element spacing. Additionally, the largest perfect non-redundant array, comprising six elements, is presented. The geometry is described, along with the properties of the layout and situations where it would be of significant benefit to array application and non-redundant masking designs.
Description
Funding Information: The work by D. McKay is partly supported by the Academy of Finland, Finland (project no.322535). The authors thank the two anonymous reviewers for their feedback and constructive criticism which helped improve this work. Publisher Copyright: © 2022. The Authors.
Keywords
array layout, interferometric technique, interferometry
Other note
Citation
McKay , D , Grydeland , T & Gustavsson , B 2022 , ' Manx Arrays: Perfect Non-Redundant Interferometric Geometries ' , Radio Science , vol. 57 , no. 9 , e2022RS007500 . https://doi.org/10.1029/2022RS007500