Spectrometers and Polyphase Filterbanks in Radio Astronomy [IMA]

http://arxiv.org/abs/1607.03579


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.

Read this paper on arXiv…

D. Price
Thu, 14 Jul 16
11/72

Comments: to be published in the WSPC Handbook of Astronomical Instrumentation, this http URL