Elimination of interference component in Wigner-Ville distribution for the signal with 1/f spectral characteristic

被引：5

作者：

Chan, HL

Lin, JL

Huang, HH

Wu, CP

机构：

[1] NATL TAIWAN UNIV,DEPT ELECT ENGN,TAIPEI 10764,TAIWAN

[2] HWA HSIA COLL TECHNOL & COMMERCE,DEPT ELECT ENGN,TAIPEI,TAIWAN

[3] NATL TAIWAN UNIV HOSP,DEPT INTERNAL MED,DIV CARDIOL,TAIPEI 100,TAIWAN

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1997年 / 44卷 / 09期

关键词：

heart rate variability; interference suppression; spectral analysis; Wigner distribution;

D O I：

10.1109/10.623060

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

A new technique for interference-term suppression in Wigner-Ville distribution (WVD) is proposed for the signal with 1/f spectrum shape. The spectral characteristic of the signal is altered by f(alpha) filtering before time-frequency analysis and compensated after analysis. With the utilization of the proposed technique in smoothed pseudo Wigner-Ville distribution, an excellent suppression of interference component can be achieved.

引用

页码：903 / 907

页数：5

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