Singerl, P. ; Koeppl, H. (2007)
A Low-rate identification method for digital predistorters based on Volterra kernel interpolation.
In: Analog Integrated Circuits and Signal Processing, 56 (1-2)
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
RF power amplifiers (PA) of wireless communication systems are usually driven in their nonlinear region to obtain a higher efficiency. The price paid for the increased efficiency is the distortion of the transmission signal. To fulfil a given spectral mask for the transmission signal and to avoid an unacceptable high bit-error rate on the receiver side, the amplifier must be linearized. It is well known that nonlinear system identification (PA or predistorter) can be accomplished on the Nyquist-rate regarding the input signal bandwidth. However for predistortion applications, systems operating on the output signal Nyquist-rate are required. In this paper we show how such predistortion systems can be obtained by a multi-dimensional Volterra kernel interpolation where the kernels are estimated on a Nyquist-rate regarding the input signal, without the demand for an expensive high sampling rate analog to digital converter (ADC).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Singerl, P. ; Koeppl, H. |
| Art des Eintrags: | Bibliographie |
| Titel: | A Low-rate identification method for digital predistorters based on Volterra kernel interpolation |
| Sprache: | Deutsch |
| Publikationsjahr: | Oktober 2007 |
| Ort: | Cincinnati, OH, USA |
| Verlag: | Springer |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Analog Integrated Circuits and Signal Processing |
| Jahrgang/Volume einer Zeitschrift: | 56 |
| (Heft-)Nummer: | 1-2 |
| URL / URN: | http://link.springer.com/article/10.1007/s10470-007-9074-4/f... |
| Kurzbeschreibung (Abstract): | RF power amplifiers (PA) of wireless communication systems are usually driven in their nonlinear region to obtain a higher efficiency. The price paid for the increased efficiency is the distortion of the transmission signal. To fulfil a given spectral mask for the transmission signal and to avoid an unacceptable high bit-error rate on the receiver side, the amplifier must be linearized. It is well known that nonlinear system identification (PA or predistorter) can be accomplished on the Nyquist-rate regarding the input signal bandwidth. However for predistortion applications, systems operating on the output signal Nyquist-rate are required. In this paper we show how such predistortion systems can be obtained by a multi-dimensional Volterra kernel interpolation where the kernels are estimated on a Nyquist-rate regarding the input signal, without the demand for an expensive high sampling rate analog to digital converter (ADC). |
| 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 11:41 |
| Letzte Änderung: | 23 Sep 2021 14:32 |
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