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dc.contributor.authorSolberg, Lars Erik
dc.contributor.authorHamran, Svein-Erik
dc.contributor.authorBerger, Tor
dc.contributor.authorBalasingham, Ilangko
dc.identifier.citationEURASIP Journal on Advances in Signal Processing. 2010, .nb_NO
dc.description.abstractThis paper studies the optimum signal choice for the estimation of the aortic blood pressure via aorta radius, using a monostatic radar configuration. The method involves developing the Cramer-Rao lower bound (CRLB) for a simplified model. The CRLB for ´ model parameters are compared with simulation results using a grid-based approach for estimation. The CRLBs are within the 99% confidence intervals for all chosen parameter values. The CRLBs show an optimal region within an ellipsoid centered at 1 GHz center frequency and 1.25 GHz bandwidth with axes of 0.5 GHz and 1 GHz, respectively. Calculations show that emitted signal energy to received noise spectral density should exceed 1012 for a precision of approximately 0.1 mm for a large range of model parameters. This implies a minimum average power of 0.4 μW. These values are based on optimistic assumptions. Reflections, improved propagation model, true receiver noise, and parameter ranges should be considered in a practical implementation.nb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleMinimum Variance Signal Selection for Aorta Radius Estimation Using Radarnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalEURASIP Journal on Advances in Signal Processingnb_NO
dc.description.localcodeCopyright © 2010 Lars Erik Solberg et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.nb_NO
cristin.unitnameInstitutt for elektroniske systemer

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal