Delay Profile Measurement System for Microwave Broadband Transmission and Analysis of Delay Characteristics in an Urban Environment (Special Issue on Microwave and Millimeter Wave Technology)
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概要
- 論文の詳細を見る
There is currently a need for development of a new frequency band to enable creation of next-generation mobile communication systems. Of the potential bands, the 3 GHz and over microwave band holds the greatest promise. Experimental studies on the delay characteristics of multipath propagation must be conducted in order to achieve high-speed transmission in the microwave band. We have developed a system for measuring the microwave broadband propagation delay profile over 100 MHz spread bandwidths in the 3, 8 and 15 GHz bands. Our experiments confirmed system performances of 20-ns resolution, 40-μs maximum measurable delay, relative amplitude error of within 3dB and dynamic range of over 60dB. We used our system to measure delay profiles on an urban area with line of sight, particularly, in terms of the effects of mobile antenna height. Typical examples are presented. Analysis showed that delay spreads increased with transmit/receive distance and decreased with the higher antenna height.
- 社団法人電子情報通信学会の論文
- 1999-07-25
著者
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KOBAYASHI Takehiko
YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.
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Kobayashi Takehiko
Yrp Mobile Telecommunications Key Technology Research Laboratories Co. Ltd.
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Takahashi S
Department Of Applied Physics National Defense Academy
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Kobayashi T
Ntt Information Sharing Platform Laboratories
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MASUI Hironari
YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.
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TAKAHASHI Koichi
YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.
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TAKAHASHI Satoshi
YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.
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KAGE Kouzou
YRP Mobile Telecommunications Key Technology Research Laboratories Co., Ltd.
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Masui Hironari
Yrp Mobile Telecommunications Key Technology Research Laboratories Co. Ltd.
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Takahashi K
Matsushita Electric Industrial Co. Ltd. Nagaokakyo‐shi Jpn
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Takahashi S
National Institute Of Information And Communication Technology (nict) Incorporated Administrative Ag
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Kagei Kouzou
Yrp Mobile Telecommunications Key Technology Research Laboratories Co. Ltd.:(present Address) Nec Co
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Masui Hironari
Yrp Mobile Telecommunications Key Technology Research Laboratories Co. Ltd.:(present Address)central
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Kobayashi Takehiko
Yrp Mobile Telecommunications Key Technology Laboratories Co. Ltd.
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Takahashi Satoshi
Yrp Mobile Telecommunications Key Technology Research Laboratories Co. Ltd.
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