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This paper presented a novel millimeter-wave output power accurate controlled method, achieved 32dB±0.3dB dynamic output power controlled range. Moreover, this paper developed a W-Band high power solid-state signal source for further 0.3THz–0.4THz imaging application, achieved at least +12dBm output power range from 75GHz to 110GHz.
Noninvasive quantification of regional arterial stiffness has been shown to be of high clinical importance. Pulse Wave Imaging (PWI) has been previously developed by our group to visualize the propagation of the pulse wave along the artery and to estimate the regional pulse wave velocity (PWV). The objectives of this paper are to 1) determine the feasibility of PWI in the human carotid artery in vivo...
In this paper a synthetic aperture (SA)-based ultra wideband (UWB) imaging system with broadband adaptive processing is proposed for general medical applications (e.g. breast cancer, water accumulation in bladder, etc.). For the signal processing, a broadband version of minimum variance distortionless response (MVDR) is implemented. To demonstrate the efficiency of the method, it is applied to an...
In this paper, an ultra wideband imaging system with semi-adaptive signal processing is examined for hemorrhagic stroke detection in a simulated head model. The 3D model consists of four non-dispersive layers representing different parts of the head. Through achieved simulation results, it is shown that ultra wideband radar concept has the potential of being an alternative imaging technique for stroke...
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