Adaptive compensation of RF front-end nonidealities in direct conversion receivers

TitleAdaptive compensation of RF front-end nonidealities in direct conversion receivers
Publication TypeJournal Article
Year of Publication2008
AuthorsSadat, Z., and R. Saleh
JournalIEEE Transactions on Circuits and Systems II-Express Briefs
Volume55
Pagination354–358
ISSN1549-7747
Abstract

In this paper, we focus on developing and demonstrating the application of a complex quantized feedback technique to mitigate unwanted effects of the direct conversion receiver (DCR) using adaptive filtering. The approach is based on cross-coupling the I and Q signal paths of the DCR with suitable adaptive filters. The obtained results indicate that the proposed compensation technique can be used to suppress do offset, baseline wander effect, I/Q mismatch and flicker noise, and has applications in orthogonal frequency-division multiplexing signaling.

URLhttp://dx.doi.org/10.1109/TCSII.2008.918975
DOI10.1109/TCSII.2008.918975

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