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Measurement and Analysis of Frequency-Domain Volterra Kernels of Nonlinear Dynamic 3 x 3 MIMO Systems
KTH, School of Electrical Engineering (EES), Signal Processing. Univ Gavle, Sweden.
KTH, School of Electrical Engineering (EES), Signal Processing. Univ Gavle, Sweden.
2017 (English)In: IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, E-ISSN 1557-9662, Vol. 66, no 7, 1893-1905 p.Article in journal (Refereed) Published
Abstract [en]

Multiple-input multiple-output (MIMO) frequencydomain Volterra kernels of nonlinear order 3 are experimentally determined in bandwidth-limited frequency regions. How the effect of higher nonlinear orders can be reduced and how this affects the estimated errors are discussed. The magnitude and the phase of the kernels are Kramers-Kronig consistent. The self-kernels and cross-kernels have different symmetries, and the kernels are therefore determined and analyzed in different regions in the 3-D frequency space. By analyzing the properties along certain paths in the 3-D frequency space, the block structures for the respective kernels are determined. These block structures contain the significant blocks of the general block structures for the third-order kernels. The device under test is an MIMO transmitter for radio frequency signals.

Place, publisher, year, edition, pages
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC , 2017. Vol. 66, no 7, 1893-1905 p.
Keyword [en]
Amplifier distortion, concurrent dual-band, cross modulation, digital predistortion, intermodulation, multiple-input multiple-output (MIMO), power amplifier
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-210337DOI: 10.1109/TIM.2017.2664482ISI: 000403292600026OAI: oai:DiVA.org:kth-210337DiVA: diva2:1119606
Note

QC 20170704

Available from: 2017-07-04 Created: 2017-07-04 Last updated: 2017-07-04Bibliographically approved

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