Title :
Time-Difference-of-Arrival imaging for ultra-wideband microwave mammography
Author :
Moll, Jonas ; Krozer, V.
Author_Institution :
Dept. of Phys., Goethe Univ. of Frankfurt, Frankfurt am Main, Germany
Abstract :
This paper presents the Time-Difference-of-Arrival (TDOA) imaging technique for ultra-wideband microwave mammography. The algorithm considers a triplet of one Tx- and two Rx-antennas where the differences in times-of-arrival are exploited for the image reconstruction process. It is shown by means of simulated signals and realistic breast geometries that the TDOA-algorithm provides accurate tumor localization. The three-dimensional intensity distribution is further processed by the visualization toolkit (VTK) to realize high quality and interactive reconstructions. In addition, we discuss the reconstruction quality generated from raw (radio-frequency) and envelope-detected (rectified) echo signals.
Keywords :
antennas; biological organs; geometry; image reconstruction; mammography; medical image processing; microwave imaging; tumours; Rx-antennas; TDOA imaging; Tx-antennas; envelope-detected echo signals; image reconstruction process; realistic breast geometry; signal simulations; three-dimensional intensity distribution; time-difference-of-arrival imaging; tumor localization; ultrawideband microwave mammography; visualization toolkit; Breast; Microwave imaging; Microwave theory and techniques; Radar imaging; Radio frequency; Tumors; MIMO radar; Microwave imaging; Signal processing;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
