A Design Study of the 400MHz Wide-Band Digital Autocorrelation Spectrometer

Details A Design Study of the 400MHz Wide-Band Digital Autocorrelation Spectrometer A Design Study of the 400MHz Wide-Band Digital Autocorrelation Spectrometer

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jass...19..327l&link_type=abstract

Journal of Astronomy and Space Science, vol. 19, no. 4, p. 327-340

Astronomy and Astrophysics

Astronomy

Autocorrelation Spectrometer, Digital Study, Radio Astronomy

Scientific paper

In this paper, we performed the design study of a wide-band digital autocorrelation spectrometer for the observation study of an extra-galaxy's spectral lines and the survey research of the special radio sources in field of the radio astronomy observational research. The autocorrelation spectrometer designed in this paper can be used to their spectrometer of any system because this spectrometer has a wide dynamic power and frequency range properties. In this system we use the aliasing sampling method to minimize the band loss. For the output signal of the correlator we can increase the signal processing speed using by a special DSP chip, the integration and the FFT using hardware, so this spectrometer can support the newest developed technique for the radio astronomy observation so called ``On the fly" method.

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