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Delay profile measurement system for microwave mobile communications and delay characteristics in an urban environment

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5 Author(s)
Kobayashi, T. ; YRP Key Tech. Labs., Yokosuka, Japan ; Masui, H. ; Takahashi, S. ; Takahashi, K.
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We have developed a system for measuring the microwave broadband propagation delay profile over 100-MHz spread bandwidths in the 3, 8, and 16 GHz bands. Experiments confirmed the system has a time resolution of 20 ns, maximum measurable delay of 40 μs, relative amplitude error of within 3 dB and dynamic range of over 60 dB. We used the system to measure line-of-sight delay profiles in an urban area and particularly studied effects of mobile antenna height. We found that delay spreads increase with increasing transmit/receive distance and become larger at the lower antenna height

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Radio and Wireless Conference, 1999. RAWCON 99. 1999 IEEE

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