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Mirrored parallel Hammerstein predistortion for multitone generation
KTH, School of Electrical Engineering (EES), Signal Processing.
KTH, School of Electrical Engineering (EES), Signal Processing.ORCID iD: 0000-0002-2718-0262
2011 (English)In: 2011 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE (I2MTC), 2011, 814-817 p.Conference paper (Refereed)
Abstract [en]

The paper discusses the approach tested for digital pre-distortion of radio frequency vector signal generators, where joint mitigation of impairments is considered stemming from the inphase/quadrature modulator, local oscillator, and power amplifier. A predistorter structure, linear in its parameters, was taken and the parameters were estimated by the least-squares method. The proposed method is validated by demonstrating improvement in the performance of the Rohde & Schwarz SMU200 by about 8 dB reduction in mirror-frequency interference, 17 dB reduction in leakage from the local oscillator, and 6 dB improvement in inter-modulation products. Thus, the tested approach is considered useful for several instrumentation and measurement applications.

Place, publisher, year, edition, pages
2011. 814-817 p.
, IEEE Instrumentation and Measurement Technology Conference, ISSN 1091-5281
Keyword [en]
Baseband signals and systems, IQ imbalance, mirror frequency distortion, digital predistortion, power amplifier
National Category
Signal Processing
URN: urn:nbn:se:kth:diva-82915DOI: 10.1109/IMTC.2011.5944045ISI: 000297171900163ScopusID: 2-s2.0-80051879173ISBN: 978-1-4244-7935-1OAI: diva2:498592
IEEE International Instrumentation and Measurement Technology Conference (I2MTC). Hangzhou, PEOPLES R CHINA. MAY 10-12, 2011
QC 20120213Available from: 2012-02-12 Created: 2012-02-12 Last updated: 2012-02-13Bibliographically approved

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