Title :
Dft Based Dynamic Multi-Frequency Bioimpedance Detection
Author :
Wang, Chao ; Zhang, Xiao-li ; Wang, Hua-Xiang
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ.
Abstract :
The dynamic multi-frequency bioimpedance measuring system based on discrete fourier transform is designed in this paper, in order to obtain the bioimpedance information in different frequencies simultaneously. A novel information extraction method of discrete fourier transform combined with the virtual reference point is presented. The hardware platform of the system is composed of the signal source module, the signal conditioner and PCI-6111 card. Using LabVIEW, functions of the collection, analysis, display and data storage are implemented, with which the bioimpedance information can be detected dynamically. From the experimental results, the dynamic reaction of respiratory and sphygmous information in different frequencies can be manifested according to the human impedance measurement
Keywords :
bioelectric phenomena; biological tissues; biomedical electrodes; biomedical equipment; biomedical measurement; discrete Fourier transforms; electric impedance measurement; medical signal detection; medical signal processing; pneumodynamics; PCI-6111 card; bioimpedance information; discrete fourier transform; dynamic multifrequency bioimpedance detection; human impedance measurement; information extraction method; measuring electrodes; respiratory information; signal conditioner; sphygmous information; virtual reference point technique; Bioimpedance; Data analysis; Data mining; Discrete Fourier transforms; Displays; Frequency measurement; Hardware; Humans; Information analysis; Memory; Bioimpedance measurement; discrete Fourier transform; dynamic information detection; virtual instrument;
Conference_Titel :
Machine Learning and Cybernetics, 2006 International Conference on
Conference_Location :
Dalian, China
Print_ISBN :
1-4244-0061-9
DOI :
10.1109/ICMLC.2006.258949
