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Disseny d'un controlador actiu de soroll (ANC)

Authors: Verge Salvadó, Blai;

Disseny d'un controlador actiu de soroll (ANC)

Abstract

En aquest projecte s’ha dissenyat i implementat un controlador actiu de soroll en un processador digital de senyal (DSP). El treball, busca una solució a la problemàtica de les comunicacions de veu en ambients molts sorollosos. Per això, s’ha partit de un cas real on existeix aquest problema, com és en la cabina d’un helicòpter en ple vol. La primera part del treball, ha consistit en l’estudi i el disseny del sistema controlador. Per això s’ha realitzat un estudi teòric dels filtres adaptatius on s’ha aprofundit en l’algoritme LMS (Least Mean Square) i les seves propietats. Un cop apreses les bases del filtrat adaptatiu, s’ha procedit al disseny del sistema. La realització de diverses simulacions del sistema amb Matlab, ha permès obtenir els paràmetres de disseny òptims per al sistema final. També s’han estudiat el funcionament i les característiques principals dels processadors digitals de senyal, així com els sistemes que usen aquest tipus de microprocessadors. La segona part, ha estat la implementació de un prototip del sistema sobre una placa de desenvolupament d’aplicacions per a DSP (DSK TMS320C6713), al laboratori de la EPSEVG.

Country
Spain
Keywords

Filtre, Processament digital, Signal processing--Digital techniques, Soroll, NLMS, DSP, Senyal, LMS, Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal, :Enginyeria de la telecomunicació::Processament del senyal [Àrees temàtiques de la UPC], CCS, Matlab

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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