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Delay profile of wideband indoor channel fluctuates for a physical change such as intruder. This paper investigates a human body detection using the wideband radio at 2.4 GHz (ISM band) in order to protect a house, not a room, because the radio with high range resolution can penetrate into the inner walls and also the reflected paths from human body are discriminated in time domain. The usefulness...
Delay profile of indoor ultra-wideband impulse-radio (UWB-IR) channel should change for the movement of a human body. This paper, the use of directional antenna is suggested for UWB-IR based home security sensor and the performance is experimentally investigated.
Ultra-wideband impulse-radio (UWB-IR) channel with omni-directional antenna was experimentally investigated inside a vehicle body with passengers where the interference power out-radiated from the vehicle is also discussed. From the result, the RMS delay spread and average delay, which are considerably degraded as compared with the use of directional antenna, are likely to decrease in proportion with...
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