An Adaptive All-Digital Blind Compensation of Dual-TIADC Frequency-Response Mismatch Based on Complex Signal Correlations

Author

Bonnetat, Antoine ; Hode, Jean-Michel ; Ferre, Guillaume ; Dallet, Dominique

Author_Institution

Thales Airborne Syst., Elancourt, France

Volume

62

Issue

9

fYear

2015

Firstpage

821

Lastpage

825

Abstract

This brief introduces an adaptive all-digital architecture for dual time-interleaved analog-to-digital converter (TIADC) frequency-response mismatch compensation based on a linear periodic time-varying correction. Parameters of the correction are estimated using correlations of the complex signal derived from the TIADC output. Simulation results of the compensation technique based on real and generated data demonstrate the efficiency of our method.

Keywords

analogue-digital conversion; correlation methods; adaptive all-digital blind compensation; complex signal correlations; dual TIADC frequency response mismatch; dual time-interleaved analog-digital converter; Computer architecture; Correlation; Cost function; Estimation; Finite impulse response filters; Time-frequency analysis; Complex data processing; complex data processing; digital enhancement; time-interleaved analog-to-digital converter; time-interleaved analog-to-digital converter (TIADC);

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2015.2435611

Filename

7111270