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Multi-tone design for out-of-band characterization of nonlinear RF modules using harmonic sampling
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för elektronik, matematik och naturvetenskap, Elektronik. (Center for RF Measurement Technologies)ORCID-id: 0000-0001-5429-7223
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för elektronik, matematik och naturvetenskap, Elektronik. Signal Processing Lab, Royal Institute of Technology, Stockholm, Sweden.
Signal Processing Lab, Royal Institute of Technology, Stockholm, Sweden.ORCID-id: 0000-0002-2718-0262
2010 (Engelska)Ingår i: 2010 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2010: Proceedings, Piscataway, NJ: IEEE Service Center , 2010, s. 620-623, artikel-id 5488231Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In this paper we evaluate the generation of a multi-tone set for characterizing the behavior of nonlinear radio frequency (RF) modules in its out-of-band when harmonic sampling is used as digitizer. The purpose is to provide the reader with a tool to select proper frequencies and record length for a given application and test-bed. The method is based on simulations and the use of Sidon sequences. The proposed method is applicable to sparse discrete frequency multi-tones.

Ort, förlag, år, upplaga, sidor
Piscataway, NJ: IEEE Service Center , 2010. s. 620-623, artikel-id 5488231
Serie
IEEE Instrumentation and Measurement Technology Conference, ISSN 1091-5281
Nyckelord [en]
Harmonic sampling, power amplifiers, out-of-band errors, radio frequency measurement systems.
Nationell ämneskategori
Reglerteknik Signalbehandling Telekommunikation
Identifikatorer
URN: urn:nbn:se:hig:diva-6380DOI: 10.1109/IMTC.2010.5488231ISI: 000287997200120Scopus ID: 2-s2.0-77957831915ISBN: 978-1-4244-2833-5 (tryckt)ISBN: 978-1-4244-2832-8 (tryckt)OAI: oai:DiVA.org:hig-6380DiVA, id: diva2:293607
Konferens
International Instrumentation and Measurement Technology Conference (I2MTC), 3-6 May 2010, Austin, Texas
Projekt
KKS SDMTillgänglig från: 2010-02-12 Skapad: 2010-02-12 Senast uppdaterad: 2019-12-11Bibliografiskt granskad
Ingår i avhandling
1. Enhancing Radio Frequency System Performance by Digital Signal Processing
Öppna denna publikation i ny flik eller fönster >>Enhancing Radio Frequency System Performance by Digital Signal Processing
2010 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

In this thesis measurement systems for the purpose of characterization of radio frequency power amplifiers are studied. Methods to increase the speed, accuracy, bandwidth, as well as to reduce the sampling requirements and testing cost are presented. A method intended for signal shaping with respect to peak to-average ratio reduction and its effects-improvements on the radio frequency front-end performance is investigated.

A time domain measurement system intended for fast and accurate measurements and characterization of radio frequency power amplifiers is discussed. An automated, fast and accurate technique for power and frequency sweep measurements is presented. Multidimensional representation of measured figure of merits is evaluated for its importance on the production-testing phase of power amplifiers.

A technique to extend the digital bandwidth of a measurement system is discussed. It is based on the Zhu-Frank generalized sampling theorem which decreases the requirements on the sampling rate of the measurement system. Its application for power amplifiers behavioral modeling is discussed and evaluated experimentally.

A general method for designing multitone for the purpose of out-of-band characterization of nonlinear radio frequency modules using harmonic sampling is presented. It has an application with the validation of power amplifiers behavioral models in their out-of-band frequency spectral support when extracted from undersampled data.

A method for unfolding the frequency spectrum of undersampled wideband signals is presented. It is of high relevance to state-of-the-art radio frequency measurement systems which capture repetitive waveform based on a sampling rate that violates the Nyquist constraint. The method is presented in a compact form, it eliminates ambiguities caused by folded frequency spectra standing outside the Nyquist band, and is relevant for calibration matters.

A convex optimization reduction-based method of peaks-to-average ratio of orthogonal frequency division multiplexing signals is presented and experimentally validated for a wireless local area network system. Improvements on the radio frequency power amplifier level are investigated with respect to power added efficiency, output power, in-band and out-of-band errors. The influence of the power distribution in the excitation signal on power amplifier performance was evaluated.

Ort, förlag, år, upplaga, sidor
Stockholm: Skolan för elektro- och systemteknik, Kungliga Tekniska högskolan, 2010. s. 90
Serie
TRITA-EE 2010:030, ISSN 1653-5146
Nationell ämneskategori
Annan elektroteknik och elektronik
Identifikatorer
urn:nbn:se:hig:diva-7312 (URN)
Presentation
2010-08-20, Hörsal 99131, Kungsbäcksvägen 47, Gävle, 10:00 (Engelska)
Opponent
Handledare
Tillgänglig från: 2010-08-18 Skapad: 2010-08-09 Senast uppdaterad: 2018-03-13Bibliografiskt granskad

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