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- W28923356 abstract "This chapter is devoted to an application of non-Gaussian signal detection. In radio astronomy, given the huge flow of processed data, quantized correlators are widely used. Unfortunately, the occurrence of non-Gaussian interference can strongly alter the shape of the estimated spectra. In this chapter, the effect of a sine wave interference on a 1-bit correlator is first analysed. Then, a new interference detection criterion is proposed. It uses the real-time capabilities of quantized correlators and makes a statistical comparison between contaminated and non-contaminated quantized correlation functions. Thus, the final spectral estimation can be preserved by blanking the correlator in real-time. Simulations, using synthetic and actual data, are presented. This technique of real time detection can significantly improve the quality of spectral line observations." @default.
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- W28923356 date "1998-01-01" @default.
- W28923356 modified "2023-10-13" @default.
- W28923356 title "Coarsely Quantized Spectral Estimation of Radio Astronomic Sources in Highly Corruptive Environments" @default.
- W28923356 cites W2033775747 @default.
- W28923356 doi "https://doi.org/10.1007/978-1-4612-1768-8_7" @default.
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