Paper Info
Title
Adaptive Blind Background Calibration of Polynomial-Represented Frequency Response Mismatches in a Two-Channel Time-Interleaved ADC
Abstract
This paper introduces an adaptive calibration structure for the blind calibration of frequency response mismatches in a two-channel time-interleaved analog-to-digital converter (TI-ADC). By representing frequency response mismatches as polynomials, we can exploit slight oversampling to estimate the coefficients of the polynomials by using the filtered-X least-mean square (FxLMS) algorithm. Utilizing the coefficients in an adaptive structure, we can compensate frequency response mismatches including time offset and bandwidth mismatches. We develop an analytical framework for the calibration structure and analyze its performance. We show the efficiency of the calibration structure by simulations, where we include examples from the literature.
Year
DOI
Venue
2011
10.1109/TCSI.2010.2094330
IEEE Transactions on Circuits and Systems I-regular Papers
Keywords
Field
DocType
adaptive structure,calibration,fxlms algorithm,polynomial-represented frequency response mismatches,analogue-digital conversion,frequency response mismatches,frequency response,time offset,adaptive blind background calibration,polynomial representation,filtered-x lms,bandwidth mismatches,least mean squares methods,blind calibration,slight oversampling,two-channel time-interleaved analog-to-digital converter,two-channel time-interleaved adc,time-interleaved analog-to-digital converter,adaptive calibration structure,polynomials,filtered-x least-mean square algorithm,distortion,bandwidth
Frequency response,Oversampling,Polynomial,Control theory,Communication channel,Electronic engineering,Bandwidth (signal processing),UTC offset,Distortion,Mathematics,Calibration
Journal
Volume
Issue
ISSN
58
6
1549-8328
Citations 
PageRank 
References 
26
1.29
40
Authors
2
Name
Order
Citations
PageRank
Shahzad Saleem1577.15
Christian Vogel236128.88