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Proceedings Paper

A new digital backend in radio astronomy based on under-sampling technology
Author(s): Liang Dong; Min Wang; Zhengyao Bai; Lesheng He
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Paper Abstract

For traditional radio astronomy instruments, we usually achieve the wide bandwidth by using the single high speed sampling rate analogy to digital convertor (ADC). But this method can lead some problems for processing, such as radio frequency interference (RFI), data transmission and so on. Take advantage of ADCs’ wide input bandwidth, we can also sample observation signals with wide bandwidth using comparatively low speed sampling rate. In this paper, we introduce the under-sampling technology, and then analyze some applications in radio astronomy. Finally, we introduce a new digital spectrometer based on this technology for solar radio observation whose core ADC is AD9430.

Paper Details

Date Published: 13 March 2013
PDF: 6 pages
Proc. SPIE 8784, Fifth International Conference on Machine Vision (ICMV 2012): Algorithms, Pattern Recognition, and Basic Technologies, 87841P (13 March 2013); doi: 10.1117/12.2014146
Show Author Affiliations
Liang Dong, Yunnan Astronomical Observatory (China)
Min Wang, Yunnan Astronomical Observatory (China)
Zhengyao Bai, Yunnan Univ. (China)
Lesheng He, Yunnan Univ. (China)


Published in SPIE Proceedings Vol. 8784:
Fifth International Conference on Machine Vision (ICMV 2012): Algorithms, Pattern Recognition, and Basic Technologies
Yulin Wang; Liansheng Tan; Jianhong Zhou, Editor(s)

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