射电天文中的光谱仪和多相滤波器组
Spectrometers and Polyphase Filterbanks in Radio Astronomy
摘要：
这篇评论介绍了光谱仪，并讨论了它们在射电天文学中的应用。虽然介绍了各种技术，但特别强调数字系统。讨论了三种不同类型的数字光谱仪：自相关光谱仪、傅里叶变换光谱仪和多相滤波器组光谱仪。鉴于多相滤波器组的日益普及和显著优势，本文将详细介绍多相滤波器组。不同的光谱仪技术的相对优势和劣势进行了比较和对比，并提出了实施考虑。
英文摘要：
This review gives an introduction to spectrometers and discusses their use within radio astronomy. While a variety of technologies are introduced, particular emphasis is given to digital systems. Three different types of digital spectrometers are discussed: autocorrelation spectrometers, Fourier transform spectrometers, and polyphase filterbank spectrometers. Given their growing ubiquity and significant advantages, polyphase filterbanks are detailed at length. The relative advantages and disadvantages of different spectrometer technologies are compared and contrasted, and implementation considerations are presented.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
