An efficient and accurate empirical mode decomposition of the technical design and methods for biological sound

Author

Wai-Chi Fang ; Chia-Ching Chou ; Tzu-Hsun Hung ; Kuen-Chih Lin ; Li, Arvin Huang-Te ; Yu-Ching Chang ; Bai-Kuang Hwang ; Yio-Wha Shau

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2012

fDate

28-30 Nov. 2012

Firstpage

320

Lastpage

323

Abstract

An EMD-based algorithm for bio-sound signal processing was proposed and implemented on VEX330 Xilinx FPGA. A free-format fixed point library was development to deal with overflow and underflow problems. Downsampled phonocardiogram signals were fed into our EMD-processor. Comparison of floating point and fixed point results exhibited satisfactory consistency and demonstrated that our novel fixed point library are able to accommodate with wild variations of dynamic ranges.

Keywords

acoustic signal processing; biomedical electronics; field programmable gate arrays; fixed point arithmetic; floating point arithmetic; medical signal processing; phonocardiography; signal sampling; VEX330 Xilinx FPGA; biological sound signal processing; downsampled phonocardiogram signals; empirical mode decomposition-based algorithm; empirical mode decomposition-processor; free-format fixed point library; overflow problems; technical design; underflow problems; Control systems; Electrocardiography; Electroencephalography; Engines; Hardware; MATLAB; Reliability; Algorithm; Bio-sound; Empirical Mode Decomposition; Phonocardiogram;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Circuits and Systems Conference (BioCAS), 2012 IEEE

Conference_Location

Hsinchu

Print_ISBN

978-1-4673-2291-1

Electronic_ISBN

978-1-4673-2292-8

Type

conf

DOI

10.1109/BioCAS.2012.6418432

Filename

6418432