Signal processing for a laser-Doppler blood perfusion meter

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Koelink, M.H. and Mul de, F.F.M. and Leerkotte, B.J.M. and Greve, J. and Jentink, H.W. and Graaff, R. and Dassel, A.C.M. and Aarnoudse, J.G. (1994) Signal processing for a laser-Doppler blood perfusion meter. Signal Processing, 38 (2). pp. 239-252. ISSN 0165-1684

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Abstract:Two signal processing methods for laser-Dopper perfusion velocimetry are presented. The methods are based on the calculation of the moments of the frequency power spectrum. The first uses Vω-filtering (ω is the frequency) with analogous electronics, the second uses signal autocorrelation with digital electronics. Comparison is made with a third instrument: a spectrum analyzer coupled to a computer, using Fourier transform tecniques. The performance of these setups (sensitivity, limit sensitivity and accuracy) are investigated. We propose a calibration standard for signal processors to be used for blood perfusion measurements. The analogous instrument proved to be the cheapest but the digital instrument had the best performance.
Item Type:Article
Copyright:© 1994 Elsevier Science
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Link to this item:http://purl.utwente.nl/publications/24654
Official URL:http://dx.doi.org/10.1016/0165-1684(94)90143-0
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Metis ID: 129455