Correction of sample-time error for time-interleaved sampling system using cubic spline interpolation

Guo Jie Qin; Guo Man Liu; Mei Guo Gao; Xiong Jun Fu; Peng Xu

doi:10.2478/mms-2014-0041

Correction of sample-time error for time-interleaved sampling system using cubic spline interpolation

Guo Jie Qin, Guo Man Liu^*, Mei Guo Gao, Xiong Jun Fu, Peng Xu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Sample-time errors can greatly degrade the dynamic range of a time-interleaved sampling system. In this paper, a novel correction technique employing a cubic spline interpolation is proposed for inter-channel sample-time error compensation. The cubic spline interpolation compensation filter is developed in the form of a finiteimpulse response (FIR) filter structure. The correction method of the interpolation compensation filter coefficients is deduced. A 4GS/s two-channel, time-interleaved ADC prototype system has been implemented to evaluate the performance of the technique. The experimental results showed that the correction technique is effective to attenuate the spurious spurs and improve the dynamic performance of the system.

Original language	English
Pages (from-to)	485-496
Number of pages	12
Journal	Metrology and Measurement Systems
Volume	21
Issue number	3
DOIs	https://doi.org/10.2478/mms-2014-0041
Publication status	Published - 2014

Keywords

Cubic spline interpolation
Digital correction
Sample-time error
Time-interleaved sampling system

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10.2478/mms-2014-0041

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abstract = "Sample-time errors can greatly degrade the dynamic range of a time-interleaved sampling system. In this paper, a novel correction technique employing a cubic spline interpolation is proposed for inter-channel sample-time error compensation. The cubic spline interpolation compensation filter is developed in the form of a finiteimpulse response (FIR) filter structure. The correction method of the interpolation compensation filter coefficients is deduced. A 4GS/s two-channel, time-interleaved ADC prototype system has been implemented to evaluate the performance of the technique. The experimental results showed that the correction technique is effective to attenuate the spurious spurs and improve the dynamic performance of the system.",

keywords = "Cubic spline interpolation, Digital correction, Sample-time error, Time-interleaved sampling system",

author = "Qin, {Guo Jie} and Liu, {Guo Man} and Gao, {Mei Guo} and Fu, {Xiong Jun} and Peng Xu",

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AU - Qin, Guo Jie

AU - Liu, Guo Man

AU - Gao, Mei Guo

AU - Fu, Xiong Jun

AU - Xu, Peng

PY - 2014

Y1 - 2014

N2 - Sample-time errors can greatly degrade the dynamic range of a time-interleaved sampling system. In this paper, a novel correction technique employing a cubic spline interpolation is proposed for inter-channel sample-time error compensation. The cubic spline interpolation compensation filter is developed in the form of a finiteimpulse response (FIR) filter structure. The correction method of the interpolation compensation filter coefficients is deduced. A 4GS/s two-channel, time-interleaved ADC prototype system has been implemented to evaluate the performance of the technique. The experimental results showed that the correction technique is effective to attenuate the spurious spurs and improve the dynamic performance of the system.

AB - Sample-time errors can greatly degrade the dynamic range of a time-interleaved sampling system. In this paper, a novel correction technique employing a cubic spline interpolation is proposed for inter-channel sample-time error compensation. The cubic spline interpolation compensation filter is developed in the form of a finiteimpulse response (FIR) filter structure. The correction method of the interpolation compensation filter coefficients is deduced. A 4GS/s two-channel, time-interleaved ADC prototype system has been implemented to evaluate the performance of the technique. The experimental results showed that the correction technique is effective to attenuate the spurious spurs and improve the dynamic performance of the system.

KW - Cubic spline interpolation

KW - Digital correction

KW - Sample-time error

KW - Time-interleaved sampling system

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VL - 21

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EP - 496

JO - Metrology and Measurement Systems

JF - Metrology and Measurement Systems

IS - 3

ER -

Correction of sample-time error for time-interleaved sampling system using cubic spline interpolation

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Keywords

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