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Fast Fourier Transform Spectrometer

  • We review the development of our digital broadband Fast Fourier Transform Spectrometers (FFTS). In just a few years, FFTS back-ends - optimized for a wide range of radio astronomical applications - have become a new standard for heterodyne receivers, particularly in the mm and sub-mm wavelength range. They offer high instantaneous bandwidths with many thousands spectral channels on a small electronic board (100 x 160 mm). Our FFT spectrometer make use of the latest versions of GHz analog-to-digital converters (ADC) and the most complex field programmable gate array (FPGA) chips commercially available today. These state-of-the-art chips have made possible to build digital spectrometers with instantaneous bandwidths up to 1.8 GHz and 8192 spectral channels.

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Metadaten
Document Type:Conference Object
Language:English
Author:B. Klein, I. Krämer, S. Hochgürtel, R. Güsten, A. Bell, K. Meyer, V. Chetik
Parent Title (English):Bryerton, Kerr et al. (Eds.): 20th International Symposium on Space Terahertz Technology. Charlottesville, 20-22 April 2009
First Page:199
Last Page:201
URL:https://library.nrao.edu/isstt/catalog/2009199201
Publication year:2009
Departments, institutes and facilities:Fachbereich Ingenieurwissenschaften und Kommunikation
Dewey Decimal Classification (DDC):5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
Entry in this database:2015/10/09