The Effects of Tropical Weather on Radio-Wave Propagation Over Foliage Channel

被引：33

作者：

Meng, Yu Song ^{[1
]}

Lee, Yee Hui ^{[1
]}

Ng, Boon Chong ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2009年 / 58卷 / 08期

关键词：

Forest; propagation; ultrahigh frequency (UHF) and weather; very high frequency (VHF); LINE-OF-SIGHT; WAVE-PROPAGATION; VEGETATION; FORESTS; WIND;

D O I：

10.1109/TVT.2009.2021480

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper investigates the dynamic property of a tropical forested channel due to the weather effect on very high frequency (VHF) and ultrahigh frequency (UHF) radio-wave propagation. In this paper, continuous-wave (CW) envelope fading waveforms are recorded over a period of 50 s with static antennas. This paper focuses on the analysis of the combined effect of wind and rain, which is often encountered in a tropical forest. The induced temporal effects are discussed and compared with theoretical models. It is found that the distribution of temporal fading components resembles a Rician distribution function. Its Rician K factor gradually decreases as the strength of either wind or rain increases due to the movement of the forest components.

引用

页码：4023 / 4030

页数：8

共 18 条

[1] MEASUREMENTS AND PREDICTIONS OF ATTENUATION AND SCATTER OF MICROWAVE SIGNALS BY TREES [J].

ALNUAIMI, MO ;

HAMMOUDEH, AM .

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 1994, 141 (02) :70-76

[2] Theoretical analysis and measurement results of vegetation effects on path loss for mobile cellular communication systems [J].

Dal Bello, JCR ;

Siqueira, GL ;

Bertoni, HL .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2000, 49 (04) :1285-1293

[3] Moment-method estimation of the Ricean K-factor [J].

Greenstein, LJ ;

Michelson, DG ;

Erceg, V .

IEEE COMMUNICATIONS LETTERS, 1999, 3 (06) :175-176

[4]

Hashim MH, 2006, IEEE T WIREL COMMUN, V5, P1055, DOI [10.1109/TWC.2006.1633358, 10.1109/TWC.2006.05013]

[5]

*INT TEL UN, 2007, P53012 ITUR

[6] Near-ground channel measurements over line-of-sight and forested paths [J].

Joshi, GG ;

Dietrich, CB ;

Anderson, CR ;

Newhall, WG ;

Davis, WA ;

Isaacs, J ;

Barnett, G .

IEE PROCEEDINGS-MICROWAVES ANTENNAS AND PROPAGATION, 2005, 152 (06) :589-596

[7]

Lee YC., 2007, Proceedings of the Electronic Packaging Technology Conference, EPTC, P1

[8] Wave mode and path characteristics in a four-layered anisotropic forest environment [J].

Li, LW ;

Lee, CK ;

Yeo, TS ;

Leong, MS .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2004, 52 (09) :2445-2455

[9] Near-earth wave propagation characteristics of electric dipole in presence of vegetation or snow layer [J].

Liao, DH ;

Sarabandi, K .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2005, 53 (11) :3747-3756

[10] UHF MEASUREMENTS OF SEASONAL FIELD-STRENGTH VARIATIONS IN FORESTS [J].

LOW, K .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 1988, 37 (03) :121-124

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