Noise and Disturbance Reduction for Heart Sounds in Cycle-Frequency Domain Based on Nonlinear Time Scaling

被引：27

作者：

Tang, Hong ^{[1
]}

Li, Ting ^{[2
]}

Qiu, Tianshuang ^{[1
]}

机构：

[1] Dalian Univ Technol, Dept Biomed Engn, Dalian 116024, Peoples R China

[2] Dalian Nationalities Univ, Coll Electromech & Informat Engn, Dalian 116600, Peoples R China

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 2010年 / 57卷 / 02期

基金：

美国国家科学基金会;

关键词：

Cycle-frequency domain; cyclic stationarity enhancement; disturbance reduction; heart sounds; noise reduction; nonlinear time scaling; ALGORITHM;

D O I：

10.1109/TBME.2009.2028693

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Through an investigation of various clinical cases, heart sounds are found to be quasi-cyclostationary. Nonlinear time scaling from cycle-to-cycle is proposed to enhance cyclic stationarity, where nonlinear time scaling is approximated by a piecewise linear function. The techniques of cyclostationary signal processing are employed in this paper to reduce noise and disturbance in the cycle-frequency domain. Heart sounds can be theoretically recovered in the presence of additive, zero mean noise, and disturbance (perhaps non-Gaussian, nonstationary, or colored). The experimental tests in various conditions confirm the theoretical results.

引用

页码：325 / 333

页数：9

共 19 条

[11] SIGNAL RECONSTRUCTION FROM SHORT-TIME FOURIER-TRANSFORM MAGNITUDE [J].

NAWAB, SH ;

QUATIERI, TF ;

LIM, JS .

IEEE TRANSACTIONS ON ACOUSTICS SPEECH AND SIGNAL PROCESSING, 1983, 31 (04) :986-998

[12]

Nikias C. L., 1995, Signal Processing with Alpha-Stable Distributions and Applications

[13]

PAUL AS, 2006, P 28 IEEE EMBS ANN I, P3385

[14] Real-time heart rate variability extraction using the Kaiser window [J].

Seydnejad, SR ;

Kitney, RI .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1997, 44 (10) :990-1005

[15] THE CUMULANT THEORY OF CYCLOSTATIONARY TIME-SERIES .2. DEVELOPMENT AND APPLICATIONS [J].

SPOONER, CM ;

GARDNER, WA .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1994, 42 (12) :3409-3429

[16] Blind source extraction of heart sound signals from lung sound recordings exploiting periodicity of the heart sound [J].

Tsalaile, T. ;

Naqvi, S. M. ;

Nazarpour, K. ;

Sanei, S. ;

Chambers, J. A. .

2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12, 2008, :461-+

[17] Segmentation of heart sounds using simplicity features and timing information [J].

Vepa, Jithendra ;

Tolay, Paresh ;

Jain, Abhishek .

2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12, 2008, :469-+

[18] First heart sound detection for phonocardiogram segmentation [J].

Wang, P. ;

Kim, Y. ;

Ling, L. H. ;

Soh, C. B. .

2005 27TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-7, 2005, :5519-5522

[19] TIME-FREQUENCY TRANSFORMS - A NEW APPROACH TO 1ST HEART-SOUND FREQUENCY DYNAMICS [J].

WOOD, JC ;

BUDA, AJ ;

BARRY, DT .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1992, 39 (07) :730-740

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