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Frequency‐filtering zoom

机译:Frequency‐filtering zoom

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AbstractSpectral component discrimination and the estimation of one or more signal frequencies are classical problems in signal processing. The purpose here is to study a new technique intended to increase the frequency resolution, called frequency‐filtering zoom (FFZ). The advantage of the method is that it gives a faithful reproduction of the amplitude and phase spectra of signals, in contrast to existing methods which need a phase correction. Moreover, our zoom has been designed to enable software real‐time analysis of low‐frequency si

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