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Improved convergence of gradient algorithms for adaptive IIR filters
dc.contributor.author | Rodríguez Fonollosa, José Adrián |
dc.contributor.author | Masgrau Gómez, Enrique José |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2016-04-18T12:19:00Z |
dc.date.available | 2016-04-18T12:19:00Z |
dc.date.issued | 1989 |
dc.identifier.citation | Fonollosa, José A. R., Masgrau, E. Improved convergence of gradient algorithms for adaptive IIR filters. A: IEEE International Symposium on Circuits and Systems. "ISCAS 1989: the IEEE International Symposium on Circuits and Systems: proceedings". Institute of Electrical and Electronics Engineers (IEEE), 1989, p. 1732-1735. |
dc.identifier.uri | http://hdl.handle.net/2117/85795 |
dc.description.abstract | The introduction of a simple correction term in gradient algorithms for adaptive IIR filtering is shown to improve their convergence and robustness. The error surface, i.e. the mean-squared value of the output error as a function of adaptive coefficients, is quadratic in adaptive FIR (finite-impulse-response) filtering, and thus a simple gradient search works well. This is not the case in adaptive IIR (infinite-impulse-response) filtering, where the error surface is far from being quadratic. Nevertheless, a simple modification of the updating equation of lattice-form algorithms can reduce this problem, resulting in faster adaptive IIR filters |
dc.format.extent | 4 p. |
dc.language.iso | eng |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació |
dc.subject.lcsh | Algorithms |
dc.subject.other | Digital filters |
dc.subject.other | Error analysis |
dc.title | Improved convergence of gradient algorithms for adaptive IIR filters |
dc.type | Conference report |
dc.subject.lemac | Algorismes |
dc.contributor.group | Universitat Politècnica de Catalunya. VEU - Grup de Tractament de la Parla |
dc.identifier.doi | 10.1109/ISCAS.1989.100700 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
local.identifier.drac | 17700630 |
dc.description.version | Postprint (published version) |
local.citation.author | Fonollosa, José A. R.; Masgrau, E. |
local.citation.contributor | IEEE International Symposium on Circuits and Systems |
local.citation.publicationName | ISCAS 1989: the IEEE International Symposium on Circuits and Systems: proceedings |
local.citation.startingPage | 1732 |
local.citation.endingPage | 1735 |