The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
지연 확산 측정은 도쿄 대도시의 준시선 거리를 따라 3.35, 8.45 및 15.75GHz의 마이크로파 주파수에서 수행되었습니다. 측정 거리에 따라 지연 확산이 증가하고 최대 600km까지 약 1ns에 도달하는 것으로 나타났습니다. 또한 지연확산의 누적확률은 로그정규분포를 따르는 것으로 확인되었다. 거리에 따른 지연 확산의 기울기는 모바일 안테나 높이가 낮을수록 더 커집니다. hm = 1.6m보다 hm = 도로 위의 차량과 보행자의 교통에 의한 차단 효과로 인해 이 측정에서는 2.7m입니다. 모바일 안테나 높이가 2.7m일 때, 누적 확률 90에서 브레이크 포인트가 상대적으로 작게 관찰되기 전 범위인 3.35ns(140GHz), 8.45ns(150GHz) 및 15.75ns(90GHz) 내에서 지연이 확산됩니다. %. 거리에 대한 지연 확산의 기울기는 측정에서 거리가 더 넓을수록 더 큽니다.
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Hironari MASUI, Koichi TAKAHASHI, Satoshi TAKAHASHI, Kouzou KAGE, Takehiko KOBAYASHI, "Distance Dependence of Microwave Delay Spreads Measured in Urban Quasi Line-of-Sight Environments" in IEICE TRANSACTIONS on Communications,
vol. E82-B, no. 12, pp. 1997-2003, December 1999, doi: .
Abstract: Measurements of delay spread were performed at microwave frequencies of 3.35, 8.45 and 15.75 GHz along quasi line-of-sight streets in metropolitan Tokyo. It is found that the delay spreads increase with the measurement distance and reach around 600 ns up to 1 km. It is also confirmed that a cumulative probability of the delay spreads follows a log-normal distribution. The gradients of delay spreads against the distance are greater for a lower mobile antenna height hm = 1.6 m than for hm = 2.7 m in these measurements because of blocking effect by the traffic of vehicles and pedestrians on the road. When the mobile antenna height is 2.7 m, the delay spreads within the range before the break points are observed relatively small: 90 ns (3.35 GHz), 140 ns (8.45 GHz) and 150 ns (15.75 GHz) at the cumulative probability of 90%. The gradients of delay spreads against the distance are greater for wider streets in our measurements.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e82-b_12_1997/_p
부
@ARTICLE{e82-b_12_1997,
author={Hironari MASUI, Koichi TAKAHASHI, Satoshi TAKAHASHI, Kouzou KAGE, Takehiko KOBAYASHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Distance Dependence of Microwave Delay Spreads Measured in Urban Quasi Line-of-Sight Environments},
year={1999},
volume={E82-B},
number={12},
pages={1997-2003},
abstract={Measurements of delay spread were performed at microwave frequencies of 3.35, 8.45 and 15.75 GHz along quasi line-of-sight streets in metropolitan Tokyo. It is found that the delay spreads increase with the measurement distance and reach around 600 ns up to 1 km. It is also confirmed that a cumulative probability of the delay spreads follows a log-normal distribution. The gradients of delay spreads against the distance are greater for a lower mobile antenna height hm = 1.6 m than for hm = 2.7 m in these measurements because of blocking effect by the traffic of vehicles and pedestrians on the road. When the mobile antenna height is 2.7 m, the delay spreads within the range before the break points are observed relatively small: 90 ns (3.35 GHz), 140 ns (8.45 GHz) and 150 ns (15.75 GHz) at the cumulative probability of 90%. The gradients of delay spreads against the distance are greater for wider streets in our measurements.},
keywords={},
doi={},
ISSN={},
month={December},}
부
TY - JOUR
TI - Distance Dependence of Microwave Delay Spreads Measured in Urban Quasi Line-of-Sight Environments
T2 - IEICE TRANSACTIONS on Communications
SP - 1997
EP - 2003
AU - Hironari MASUI
AU - Koichi TAKAHASHI
AU - Satoshi TAKAHASHI
AU - Kouzou KAGE
AU - Takehiko KOBAYASHI
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E82-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 1999
AB - Measurements of delay spread were performed at microwave frequencies of 3.35, 8.45 and 15.75 GHz along quasi line-of-sight streets in metropolitan Tokyo. It is found that the delay spreads increase with the measurement distance and reach around 600 ns up to 1 km. It is also confirmed that a cumulative probability of the delay spreads follows a log-normal distribution. The gradients of delay spreads against the distance are greater for a lower mobile antenna height hm = 1.6 m than for hm = 2.7 m in these measurements because of blocking effect by the traffic of vehicles and pedestrians on the road. When the mobile antenna height is 2.7 m, the delay spreads within the range before the break points are observed relatively small: 90 ns (3.35 GHz), 140 ns (8.45 GHz) and 150 ns (15.75 GHz) at the cumulative probability of 90%. The gradients of delay spreads against the distance are greater for wider streets in our measurements.
ER -