Title :
The Effects of Tropical Weather on Radio-Wave Propagation Over Foliage Channel
Author :
Meng, Yu Song ; Lee, Yee Hui ; Ng, Boon Chong
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
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.
Keywords :
UHF radio propagation; VHF radio propagation; antennas; fading; meteorology; Rician K-factor; Rician distribution function; UHF radiowave propagation; continuous-wave envelope fading waveform; foliage channel; static antennas; temporal fading components; tropical forested channel; tropical weather effect; ultrahigh frequency radiowave propagation; very high frequency radiowave propagation; Forest; propagation; ultrahigh frequency (UHF) and weather; very high frequency (VHF);
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2009.2021480
