Koeppl, H. ; Paoli, G.
Hrsg.: The Institute of Mathematics and its Applications (IMA) (2000)
Non-Linear System Identification of a Broadband Subscriber Line Interface Circuit for ADSL-Lite Using the Volterra Approach.
5th IMA International Conference on Mathematics in Signal Processing. Warwick, United Kingdom
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Making use of the Volterra approach, black box modeling is applied to a large scale analog circuitry for an ADSL (asymmetric digital subscriber line) central o#ce application. Reducing the number of free parameters through special assumptions on the Volterra kernels, one ends up with the Hammerstein model. Taking the first few taps of the Volterra kernels and approximating the last taps through Hammerstein kernels, the Volterra-Hammerstein model is obtained. The parametrization of these models is an inverse problem and leads to an ill-conditioned linear equations system, thus regularization techniques are used. Discrete multi tones (DMT) serve as excitation signals. Data acquisition is done by the analog network simulator SABER # . Emphasis was put on the accuracy of the inter-modulation products, described by a generalized signal to noise ratio. The Hammerstein and the Volterra-Hammerstein models are compared with each other and with meassurements from the laboratory.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2000 |
| Autor(en): | Koeppl, H. ; Paoli, G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Non-Linear System Identification of a Broadband Subscriber Line Interface Circuit for ADSL-Lite Using the Volterra Approach |
| Sprache: | Englisch |
| Publikationsjahr: | 2000 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Proceedings of 5th IMA Conference on Mathematics in Signal Processing |
| Veranstaltungstitel: | 5th IMA International Conference on Mathematics in Signal Processing |
| Veranstaltungsort: | Warwick, United Kingdom |
| Kurzbeschreibung (Abstract): | Making use of the Volterra approach, black box modeling is applied to a large scale analog circuitry for an ADSL (asymmetric digital subscriber line) central o#ce application. Reducing the number of free parameters through special assumptions on the Volterra kernels, one ends up with the Hammerstein model. Taking the first few taps of the Volterra kernels and approximating the last taps through Hammerstein kernels, the Volterra-Hammerstein model is obtained. The parametrization of these models is an inverse problem and leads to an ill-conditioned linear equations system, thus regularization techniques are used. Discrete multi tones (DMT) serve as excitation signals. Data acquisition is done by the analog network simulator SABER # . Emphasis was put on the accuracy of the inter-modulation products, described by a generalized signal to noise ratio. The Hammerstein and the Volterra-Hammerstein models are compared with each other and with meassurements from the laboratory. |
| Freie Schlagworte: | Volterra, ADSL, non-linear system, circuits, DMT |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Nachrichtentechnik > Bioinspirierte Kommunikationssysteme 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Nachrichtentechnik |
| Hinterlegungsdatum: | 04 Apr 2014 13:10 |
| Letzte Änderung: | 23 Sep 2021 14:32 |
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