Measurement and analysis of frequency-domain Volterra kernels of nonlinear dynamic 3x3 MIMO systems
2016 (English)In: IEEE Transactions on Instrumentation and Measurement, ISSN 0018-9456, E-ISSN 1557-9662Article in journal (Refereed) Accepted
Multiple-input multiple-output (MIMO) frequency-domain 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 phase of the kernels areKramers-Kronig consistent. The self- and cross-kernels have different symmetries and the kernels are therefore determined and analyzed in different regions in the 3D frequency space. By analyzing the properties along certain paths in the 3D frequency space, the block structures for the respective kernels are determined. These block structures contain the significant blocks of the general block structures for third-order kernels. The device under test is a MIMO transmitter for radio frequency signals.
Place, publisher, year, edition, pages
IEEE Press , 2016.
IdentifiersURN: urn:nbn:se:hig:diva-23216OAI: oai:DiVA.org:hig-23216DiVA: diva2:1062321