Temporal Variations Investigation over a Forested Channel in VHF and UHF hands

Author

Meng, Yu Song ; Lee, Yee Hui

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

fYear

2006

fDate

26-29 Oct. 2006

Firstpage

1

Lastpage

4

Abstract

This paper presents a study of propagation through a typical coconut plantation for frequencies in the range of 40 MHz to 1400 MHz. Measurements of continuous-wave (CW) waveforms are used to construct the distribution functions for the fast fading characteristics of the channel. It is found to be Rician distributed. Analysis of the Rician K factor demonstrates that the received signal behavior is highly frequency dependent. Tree trunk is a major scatterer for trunk-level measurements and the canopy of the trees influences the propagation of lower frequency signals. Finally, level crossing rates and average fading duration results are presented.

Keywords

Rician channels; UHF radio propagation; VHF radio propagation; electromagnetic wave scattering; waveform analysis; Rician distributed; UHF bands; VHF bands; average fading duration; coconut plantation; continuous-wave waveforms; distribution functions; fading channel; forested channel; frequency 40 MHz to 1400 MHz; level crossing rates; temporal variations investigation; tree trunk scattering; Antenna measurements; Antennas and propagation; Distribution functions; Fading; Frequency measurement; Frequency response; Rician channels; Scattering; Sea measurements; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation & EM Theory, 2006. ISAPE '06. 7th International Symposium on

Conference_Location

Guilin

Print_ISBN

1-4244-0162-3

Electronic_ISBN

1-4244-0163-1

Type

conf

DOI

10.1109/ISAPE.2006.353518

Filename

4168179