A sub-band based reconstructor for M-channel time-interleaved ADCS with missing samples

Author

Pillai, Anu Kalidas Muralidharan ; Johansson, Hakan

Author_Institution

Dept. of Electr. Eng., Linkoping Univ., Linkoping, Sweden

fYear

2014

fDate

4-9 May 2014

Firstpage

4126

Lastpage

4130

Abstract

This paper proposes a scheme for the recovery of a uniformly sampled sequence from the output of a time-interleaved analog-to-digital converter (TI-ADC) with static time-skew errors and missing samples. Nonuniform sampling occurs due to timing mismatches between the individual channel ADCs and also due to missing input samples as some of the sampling instants are reserved for estimating the mismatches in the TI-ADC. In addition to using a non-recursive structure, the proposed reconstruction scheme supports online reconfigurability and reduces the computational complexity of the reconstructor as compared to a previous solution.

Keywords

signal reconstruction; signal sampling; M-channel time-interleaved ADCS; computational complexity; missing samples; nonuniform sampling; static time-skew errors; subband based reconstructor; time-interleaved analog-to-digital converter; Calibration; Computational complexity; Convergence; Finite impulse response filters; Nonuniform sampling; Timing; FIR; Nonuniform sampling; reconstruction; time-interleaved ADC; timing mismatch;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on

Conference_Location

Florence

Type

conf

DOI

10.1109/ICASSP.2014.6854378

Filename

6854378