论文标题
连贯的时间域取消对射电天文学的干扰
Coherent Time-Domain Canceling of Interference for Radio Astronomy
论文作者
论文摘要
射电天文学容易受到各种人为来源的干扰。缓解这种干扰的众多策略包括连贯的时间域取消（CTC），它理想地允许人们“浏览”干扰，而不是避免干扰或删除受苦的数据。但是，CTC难以实施，尚不清楚，目前尚未在任何主要的射电望远镜上定期使用这种策略。本文介绍了CTC的综述，其中包括使用与射电天文学相关的指标，包括对CTC的功能和局限性的新综合研究，包括消除干扰功率的部分和增加噪声。这项工作是出于新一代通信系统的出现而引起的，这些传播系统对射电天文学构成了显着增加的威胁，并且现在可能会采用缓解方法。
Radio astronomy is vulnerable to interference from a variety of anthropogenic sources. Among the many strategies for mitigation of this interference is coherent time-domain canceling (CTC), which ideally allows one to "look through" interference, as opposed to avoiding the interference or deleting the afflicted data. However, CTC is difficult to implement, not well understood, and at present this strategy is not in regular use at any major radio telescope. This paper presents a review of CTC including a new comprehensive study of the capabilities and limitations of CTC using metrics relevant to radio astronomy, including fraction of interference power removed and increase in noise. This work is motivated by the emergence of a new generation of communications systems which pose a significantly increased threat to radio astronomy and which may overwhelm mitigation methods now in place.
