Title :
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
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;
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
DOI :
10.1109/BioCAS.2012.6418432
