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A UWB impulse Doppler radar has been developed recently to detect the micro-Doppler signatures of human motions. The system RF front-end, wideband antenna array and high speed data acquisition module are introduced in details. The developed radar is used to detect the Doppler features of arms swing, which has unique characteristics compared to movements of other body components, for intelligent human...
A microwave imaging system prototype has been developed for early breast cancer detection. The system is based on impulse Ultra-Wideband (UWB) radar technology. A novel, practical calibration method has been applied in our system to remove the large received signals due to both skin backscattering and Tx/Rx antenna coupling, and to underline the reflection/scattering from object of interest. This...
A system level framework has been developed to simulate the UWB three-dimensional through-wall radar system and accurately predict its performance limitations. Only through a novel simulation model where Agilent ADS Ptolemy simulation is used combined with its Matlab co-simulation, is it possible to accurately simulate the UWB radar system. The developed simulation model has been validated experimentally...
A reconfigurable ultra-wideband system for through wall imaging application has been developed. The radar operating frequency can be selected to cover either 2-4 GHz or 8-10 GHz UWB bands. The lower UWB band is used to minimize through wall attenuation for relatively high loss wall materials, but the upper band can be utilized to achieve high image resolution for relatively low loss walls. A synthetic...
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