Bioelectrical Impedance Measurement Way Based on an Improved DPSD Algorithm

Jie Tao Diao; Qi You Xie; Miao Li; Wen Li Liu; Zhao Lin Sun

doi:10.4028/www.scientific.net/AMM.182-183.1694

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 182-183Bioelectrical Impedance Measurement Way Based on...

Bioelectrical Impedance Measurement Way Based on an Improved DPSD Algorithm

Abstract:

In Bioelectrical impedance measurement, the impedance accuracy is a very important parameter. With the analysis of general Digital Phase Sensitive Detection (DPSD) algorithm and its error, this paper presents an improved DPSD algorithm. In this method, it firstly decomposes the orthogonal signals which have passed through the networks, and then sums (minus) the relevant signals to get the parameters amplitude and phase. By this way, it can avoid errors caused by filtering operation in general DPSD algorithm. At last, the paper gives a simulation which can be hardware-based achieved. The result proves the effectiveness and feasibility of this improved method.

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Periodical:

Applied Mechanics and Materials (Volumes 182-183)

Pages:

1694-1697

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.182-183.1694

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Online since:

June 2012

Authors:

Jie Tao Diao, Qi You Xie, Miao Li, Wen Li Liu, Zhao Lin Sun

Keywords:

Bioelectrical Impedance Measurement, DPSD, System Generator

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References

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