99164 20230519145452.0 doi 10.3390/app11010344 sideral 122601 ART-2021-122601 eng Ramos Lorente, P. Universidad de Zaragoza (orcid)0000-0002-9508-7078 Modified filtered-x hierarchical lms algorithm with sequential partial updates for active noise control 2021 Access copy available to the general public Unrestricted In the field of active noise control (ANC), a popular method is the modified filtered-x LMS algorithm. However, it has two drawbacks: Its computational complexity higher than that of the conventional FxLMS, and its convergence rate that could still be improved. Therefore, we propose an adaptive strategy which aims at speeding up the convergence rate of an ANC system dealing with periodic disturbances. This algorithm consists in combining the organization of the filter weights in a hierarchy of subfilters of shorter length and their sequential partial updates (PU). Our contribution is threefold: (1) we provide the theoretical basis of the existence of a frequency-depend-ent parameter, called gain in step-size. (2) The theoretical upper bound of the step-size is compared with the limit obtained from simulations. (3) Additional experiments show that this strategy results in a fast algorithm with a computational complexity close to that of the conventional FxLMS. info:eu-repo/grantAgreement/ES/UZ/Cátedra Devoture de Tecnología para el Ser Humano info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 2.838 2021 ENGINEERING, MULTIDISCIPLINARY 39 / 92 = 0.424 2021 Q2 T2 PHYSICS, APPLIED 76 / 161 = 0.472 2021 Q2 T2 MATERIALS SCIENCE, MULTIDISCIPLINARY 218 / 345 = 0.632 2021 Q3 T2 CHEMISTRY, MULTIDISCIPLINARY 100 / 180 = 0.556 2021 Q3 T2 0.507 2021 Engineering (miscellaneous) 2021 Q2 Computer Science Applications 2021 Q2 Process Chemistry and Technology 2021 Q2 Materials Science (miscellaneous) 2021 Q2 Fluid Flow and Transfer Processes 2021 Q2 3.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Martin Ferrer, R. Arranz Martínez, F. Palacios-Navarro, G. Universidad de Zaragoza (orcid)0000-0002-9408-1280 5008 785 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Tecnología Electrónica 5008 800 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Teoría Señal y Comunicac. 11, 1 (2021), 344 [25 pp] Appl. sci. Applied Sciences (Switzerland) 2076-3417 1499302 http://zaguan.unizar.es/record/99164/files/texto_completo.pdf Versión publicada 2493409 http://zaguan.unizar.es/record/99164/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:99164 articulos driver 2023-05-18-14:46:30 ARTICLE