Title :
Hemorrhagic stroke detection via adaptive UWB medical imaging radar
Author :
Jalilvand, M. ; Pancera, E. ; Li, X. ; Zwick, T. ; Wiesbeck, W.
Author_Institution :
IHE - Karlsruhe Inst. of Technol., Karlsruhe, Germany
Abstract :
Ultra wideband synthetic aperture-based radar imaging via adaptive signal processing is proposed for hemorrhagic stroke detection. The efficiency of the method is evaluated via simulation results corresponding to a 3D head model consisting of four dispersive layers. A semi-spherical synthetic array is formed around the model by moving two ultra wideband Vivaldi antennas. A broadband version of minimum variance processing is implemented in the frequency domain as the image reconstruction unit followed by further post-processing of the signals by taking into account the coherence factor.
Keywords :
frequency-domain analysis; image reconstruction; medical image processing; radar antennas; radar imaging; synthetic aperture radar; ultra wideband antennas; ultra wideband radar; 3D head model; adaptive UWB medical imaging radar; adaptive signal processing; coherence factor; dispersive layers; frequency domain; hemorrhagic stroke detection; image reconstruction unit; minimum variance processing; semispherical synthetic array; signal post-processing; ultrawideband Vivaldi antennas; ultrawideband synthetic aperture radar imaging; Adaptation models; Broadband antennas; Broadband communication; Head; Hemorrhaging; Image reconstruction; Radar imaging; medical imaging radar; minimum variance; stroke detection; ultra wideband;
Conference_Titel :
Radar Conference (EuRAD), 2011 European
Conference_Location :
Manchester
Print_ISBN :
978-1-4577-1156-5
