大型N干涉仪天线故障的自动检测：以氢再电离时代阵列为例
天体物理仪器与方法
2022-05-06 v3 宇宙学与河外天体物理
摘要
我们提出了一个用于识别和标记大型射电干涉仪中故障天线的框架。我们概述了两类不同的度量指标，旨在检测大型阵列已知故障模式下的异常值：基于所有天线对的互相关度量指标，以及仅基于单个天线的自相关度量指标。我们定义并阐述了所用所有度量指标的统计框架，并提供了定制的可视化图表，以帮助我们清晰地识别新的和现有的系统效应。我们以氢再电离时代阵列（HERA）中105个天线的数据为例，实现了这些技术。最后，我们提供了一个详细的算法，用于在实际数据集上将这些度量指标作为标记工具来实施。
引用
@article{arxiv.2109.12733,
title = {Automated Detection of Antenna Malfunctions in Large-N Interferometers: A Case Study with the Hydrogen Epoch of Reionization Array},
author = {Dara Storer and Joshua S. Dillon and Daniel C. Jacobs and Miguel F. Morales and Bryna J. Hazelton and Aaron Ewall-Wice and Zara Abdurashidova and James E. Aguirre and Paul Alexander and Zaki S. Ali and Yanga Balfour and Adam P. Beardsley and Gianni Bernardi and Tashalee S. Billings and Judd D. Bowman and Richard F. Bradley and Philip Bull and Jacob Burba and Steven Carey and Chris L. Carilli and Carina Cheng and David R. DeBoer and Eloy de Lera Acedo and Matt Dexter and Scott Dynes and John Ely and Nicolas Fagnoni and Randall Fritz and Steven R. Furlanetto and Kingsley Gale-Sides and Brian Glendenning and Deepthi Gorthi and Bradley Greig and Jasper Grobbelaar and Ziyaad Halday and Jacqueline N. Hewitt and Jack Hickish and Tian Huang and Alec Josaitis and Austin Julius and MacCalvin Kariseb and Nicholas S. Kern and Joshua Kerrigan and Piyanat Kittiwisit and Saul A. Kohn and Matthew Kolopanis and Adam Lanman and Paul La Plante and Adrian Liu and Anita Loots and David MacMahon and Lourence Malan and Cresshim Malgas and Zachary E. Martinot and Andrei Mesinger and Mathakane Molewa and Tshegofalang Mosiane and Steven G. Murray and Abraham R. Neben and Bojan Nikolic and Chuneeta Devi Nunhokee and Aaron R. Parsons and Robert Pascua and Nipanjana Patra and Samantha Pieterse and Jonathan C. Pober and Nima Razavi-Ghods and Daniel Riley and James Robnett and Kathryn Rosie and Mario G. Santos and Peter Sims and Saurabh Singh and Craig Smith and Jianrong Tan and Nithyanandan Thyagarajan and Peter K. G. Williams and Haoxuan Zheng},
journal= {arXiv preprint arXiv:2109.12733},
year = {2022}
}
备注
31 pages, 17 figures