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An algorithm to improve signal-to-noise discrimination in Doppler spectrum analysers
Authors:T D'Alessio  A Catanzariti
Institution:

Istituto di Comunicazioni Elettriche and Centro per l'Ingegneria Biomedica, Universita degli Studi di, Roma, Italy

Biotronix, Roma, Italy

IV Cattedra di Patologia Chirurgica and Centro per l'Ingegneria Biomedica, Universita degli Studi di, Roma, Italy

Abstract:An algorithm for the discrimination between signal and noise in Doppler spectrum analysers is proposed. Test results show that the algorithm can be used to estimate ‘objectively’ the maximum frequency of a spectrum independently of the subjective judgement of the operator and the spectrum analyser gain.
Keywords:ultrasonics  signal processing  Doppler systems
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