CORRECTION OF SAMPLE-TIME ERROR FOR TIME-INTERLEAVED SAMPLING SYSTEM USING CUBIC SPLINE INTERPOLATION

被引：7

作者：

Qin, Guo-jie ^{[1
,2
]}

Liu, Guo-man ^{[1
]}

Gao, Mei-guo ^{[1
]}

Fu, Xiong-jun ^{[1
]}

Xu, Peng ^{[3
]}

机构：

[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China

[2] China Acad Elect & Informat Technol, Beijing 100041, Peoples R China

[3] Beijing Inst Technol, Sch Mechatron Engn, Beijing 100081, Peoples R China

来源：

METROLOGY AND MEASUREMENT SYSTEMS | 2014年 / 21卷 / 03期

基金：

中国国家自然科学基金;

关键词：

digital correction; sample-time error; time-interleaved sampling system; cubic spline interpolation; DIGITAL-BACKGROUND CALIBRATION; MISMATCH ERRORS; ADC; COMPENSATION; GAIN;

D O I：

10.2478/mms-2014-0041

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 finite-impulse 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.

引用

页码：485 / 496

页数：12

共 20 条

[1]

[Anonymous], IEEE STAND TERM TEST

[2] TIME INTERLEAVED CONVERTER ARRAYS [J].

BLACK, WC ;

HODGES, DA .

IEEE JOURNAL OF SOLID-STATE CIRCUITS, 1980, 15 (06) :1022-1029

[3]

Bradie B., 2006, FRIENDLY INTRO NUMER

[4] Efficient Digital Background Calibration of Time-Interleaved Pipeline Analog-to-Digital Converters [J].

Centurelli, Francesco ;

Monsurro, Pietro ;

Trifiletti, Alessandro .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2012, 59 (07) :1373-1383

[5] Blind equalization of time errors in a time-interleaved ADC system [J].

Elbornsson, J ;

Gustafsson, F ;

Eklund, JE .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2005, 53 (04) :1413-1424

[6]

Elbornsson J, 2002, INT CONF ACOUST SPEE, P1281

[7] A digital-background calibration technique for minimizing timing-error effects in time-interleaved ADC's [J].

Jin, HW ;

Lee, EKF .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-ANALOG AND DIGITAL SIGNAL PROCESSING, 2000, 47 (07) :603-613

[8] Reconstruction of nonuniformly sampled bandlimited signals by means of digital fractional delay filters [J].

Johansson, H ;

Löwenborg, P .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2002, 50 (11) :2757-2767

[9] A Polynomial-Based Time-Varying Filter Structure for the Compensation of Frequency-Response Mismatch Errors in Time-Interleaved ADCs [J].

Johansson, Hakan .

IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING, 2009, 3 (03) :384-396

[10]

Jridi M, 2006, IEEE I C ELECT CIRC, P1097

← 1 2 →