Input-Feature Correlated Asynchronous Analog to Information Converter for ECG Monitoring

被引：36

作者：

Agarwal, Ritika ^{[1
]}

Sonkusale, Sameer R. ^{[1
]}

机构：

[1] Tufts Univ, Nanoscale Integrated Sensors & Circuits Lab, Medford, MA 02155 USA

来源：

IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS | 2011年 / 5卷 / 05期

关键词：

Adaptive technique; ambulatory; analog-to-digital conversion; analog-to-information (A2I) converter; asynchronous; biomedical health monitoring; compressed sensing; data compression; electrocardiogram (ECG) monitoring; QRS detection; source compression; SIGNAL; PRINCIPLES;

D O I：

10.1109/TBCAS.2011.2116787

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper illustrates an architectural design of a novel variable input-feature correlated asynchronous sampling and time-encoded digitization approach for source compression and direct feature extraction from physiological signals. The complete architecture represents an analog-to-information (A2I) converter, designed for ultra-low-power mixed-signal very-large-scale integrated implementation. The device will be suitable for long-term wearable monitoring of physiological signals, such as electrocardiogram (ECG). We show representative case studies on QRS detection in an ECG signal utilizing the proposed A2I converter to prove the functionality of the design. Simulation results show large source compression in the ECG signal and more than 98% efficiency in the detection of the Q, R, and S waves for challenging ECG waveforms, all with extremely low-power and storage requirements.

引用

页码：459 / 467

页数：9

共 23 条

[1]

Agarwal R, 2009, BIOMED CIRC SYST C, P64

[2] A level-crossing flash asynchronous analog-to-digital converter [J].

Akopyan, Filipp ;

Manohar, Rajit ;

Apsel, Alyssa B. .

12TH IEEE INTERNATIONAL SYMPOSIUM ON ASYNCHRONOUS CIRCUITS AND SYSTEMS, PROCEEDINGS, 2006, :12-22

[3] A 120nm low power asynchronous ADC [J].

Allier, E ;

Goulier, J ;

Sicard, G ;

Dezzani, A ;

André, E ;

Renaudin, M .

ISLPED '05: PROCEEDINGS OF THE 2005 INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN, 2005, :60-65

[4] Robust uncertainty principles:: Exact signal reconstruction from highly incomplete frequency information [J].

Candès, EJ ;

Romberg, J ;

Tao, T .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (02) :489-509

[5]

Candès EJ, 2008, IEEE SIGNAL PROC MAG, V25, P21, DOI 10.1109/MSP.2007.914731

[6] Near-optimal signal recovery from random projections: Universal encoding strategies? [J].

Candes, Emmanuel J. ;

Tao, Terence .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2006, 52 (12) :5406-5425

[7] A real-time QRS detection method based on moving-averaging incorporating with wavelet denoising [J].

Chen, Szi-Wen ;

Chen, Hsiao-Chen ;

Chan, Hsiao-Lung .

COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE, 2006, 82 (03) :187-195

[8] Single-pixel imaging via compressive sampling [J].

Duarte, Marco F. ;

Davenport, Mark A. ;

Takhar, Dharmpal ;

Laska, Jason N. ;

Sun, Ting ;

Kelly, Kevin F. ;

Baraniuk, Richard G. .

IEEE SIGNAL PROCESSING MAGAZINE, 2008, 25 (02) :83-91

[9] A COMPARISON OF THE NOISE SENSITIVITY OF 9 QRS DETECTION ALGORITHMS [J].

FRIESEN, GM ;

JANNETT, TC ;

JADALLAH, MA ;

YATES, SL ;

QUINT, SR ;

NAGLE, HT .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1990, 37 (01) :85-98

[10] PhysioBank, PhysioToolkit, and PhysioNet - Components of a new research resource for complex physiologic signals [J].

Goldberger, AL ;

Amaral, LAN ;

Glass, L ;

Hausdorff, JM ;

Ivanov, PC ;

Mark, RG ;

Mietus, JE ;

Moody, GB ;

Peng, CK ;

Stanley, HE .

CIRCULATION, 2000, 101 (23) :E215-E220

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