Modified Least Squares Extraction for Volterra-Series Digital Predistorter in the Presence of Feedback Measurement Errors

Measurement errors (in-phase/quadrature imbalance, dc offset, and nonlinearity) in the feedback path can adversely affect the linearization performance of digital predistorter (DPD) for RF power amplifiers (PAs). In this paper, a generalized analysis for the Volterra-series DPD system is presented i...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 2012-11, Vol.60 (11), p.3559-3570
Hauptverfasser:	You-Jiang Liu, Wenhua Chen, Jie Zhou, Bang-Hua Zhou, Ghannouchi, F. M., Yi-Nong Liu
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplifiers Applied sciences Baseband Circuit properties Computer architecture Demodulation Digital predistorter (DPD) Electric, optical and optoelectronic circuits Electronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology feedback path in-phase/quadrature (I/Q) imbalance Measurement errors Nonlinear distortion Physics Polynomials power amplifiers (PAs) Volterra series
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