An efficient and accurate empirical mode decomposition of the technical design and methods for biological sound
Journal
2012 IEEE Biomedical Circuits and Systems Conference: Intelligent Biomedical Electronics and Systems for Better Life and Better Environment, BioCAS 2012 - Conference Publications
Pages
320-323
Date Issued
2012
Author(s)
Fang, W.-C.
Chou, C.-C.
Hung, T.-H.
Lin, K.-C.
Li, A.H.-T.
Chang, Y.-C.
Hwang, B.-K.
Shau, Y.-W.
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.
Type
conference paper