Digital differentiators for narrow band applications in the lower to midband range

Ripple designs of FIR digital differentiators are suitable for wideband applications, but cannot produce very high accuracies in narrow bands. In this paper, we present new simple designs for FIR digital differentiators, with very high accuracies in the narrow bands centered at arbitrary frequencies in the lower half of the frequency band. First, a new… (More)

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