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.
Document Type: | Conference Object |
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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 |