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This paper presents a respiratory rate monitoring sensor using stepped-FM ultra-wideband impulse-radio (UWB-IR), which does not require high speed A/D devices unlike conventional UWB-IR sensors. This sensor is also capable of co-existing with other narrowband systems operating in overlaid frequency band, since it can be designed to have any spectrum hole without causing interference with other wireless...
Ultra-wideband impulse-radio (UWB-IR) has many advantages against video and narrowband microwave radio. In this paper, UWB-IR based microwave sensor watching for bathroom is suggested in order to prevent the accident caused by heat-shock and the performance is experimentally investigated using a vector network analyzer. It has been found from the measurement result that the use of UWB-IR is useful...
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