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Noise Impact on the...
Noise Impact on the Identification of Digital Predistorter Parameters in the Indirect Learning Architecture
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- Amin, Shoaib, 1985- (författare)
- KTH,Högskolan i Gävle,Elektronik,Signalbehandling
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- Zenteno, Efrain (författare)
- KTH,Högskolan i Gävle,Elektronik,Signalbehandling
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- Landin, Per (författare)
- Högskolan i Gävle,Elektronik,Dept. Electronics, Mathematics and Natural Sciences, Faculty of Engineering and Sustainable Development,University of Gävle
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- Rönnow, Daniel (författare)
- Högskolan i Gävle,Elektronik,Dept. Electronics, Mathematics and Natural Sciences, Faculty of Engineering and Sustainable Development,University of Gävle
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- Isaksson, Magnus (författare)
- Högskolan i Gävle,Elektronik,Dept. Electronics, Mathematics and Natural Sciences, Faculty of Engineering and Sustainable Development,University of Gävle
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- Händel, Peter (författare)
- KTH,Signalbehandling,ACCESS Linnaeus Centre, Signal Processing Lab, KTH Royal Institute of Technology
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(creator_code:org_t)
- IEEE conference proceedings, 2012
- 2012
- Engelska.
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Ingår i: 2012 Swedish Communication Technologies Workshop (Swe-CTW). - : IEEE conference proceedings. - 9781467347631 ; , s. 36-39
- Relaterad länk:
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https://hig.diva-por... (primary) (Raw object)
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http://ieeexplore.ie...
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The indirect learning architecture (ILA) is the mostused methodology for the identification of Digital Pre-distorter (DPD) functions for nonlinear systems, particularly for high power amplifiers. The ILA principle works in black box modeling relying on the inversion of input and output signals of the nonlinear system, such that the inverse is estimated. This paper presents the impact of disturbances, such as noise in the DPD identification. Experiments were performed with a state-of-art Doherty power amplifier intended for base station operation in current telecommunication wireless networks. As expected, a degradation in the performance of the DPD (measured innormalized mean square error (NMSE)) is found in our experiments. However, adjacent channel power ratio (ACPR) can be a misleading figure of merit showing improvement in the performance for wrongly estimated DPD functions.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Nyckelord
- Digital Predistortion
- Noise Impact
- Indirect learning architecture
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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