RFI mitigation techniques in radio astronomy
RFI mitigation techniques in radio astronomy
复制标题
射电天文学中的 RFI 缓解技术
DOI：
10.1109/igarss.2014.6946399
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
K. Buch
中科院分区：
文献类型：
--
作者：
J. Ford;K. Buch
射频干扰（RFI）是一个日益关注的高度敏感的地面射电望远镜的无线电接收机。RFI降低了射电望远镜的灵敏度，并在观测数据中产生伪影。多年来，已经提出并实施了几种减轻RFI的技术，要么通过控制和消除射电望远镜周围的RFI源，要么在接收器链的不同位置去除RFI。本文探讨了在减轻射电天文观测中的射频干扰方面所采取的监管和管理努力以及技术方法。此外，还介绍了目前正在开发的技术以及为即将到来的宽带和高灵敏度射电望远镜提出的技术。
Radio Frequency Interference (RFI) is a growing concern for the highly sensitive radio receivers of ground based radio telescopes. RFI reduces the sensitivity of a radio telescope and produces artifacts in the observed data. Over the years, several techniques have been proposed and implemented for mitigating RFI, either by controlling and eliminating sources of RFI around the radio telescope or its removal at different locations in the receiver chain. This paper examines regulatory and management efforts as well as technological approaches employed in mitigating radio frequency interference in radio astronomy observations. Also, the techniques currently under development and those proposed for the upcoming wide bandwidth and highly sensitive radio telescopes are described.