Title :
Impact of sapling movements on VHF and UHF radio-wave propagations
Author :
Yee Hui Lee ; Yu Song Meng
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, the impact of sapling movements on VHF and UHF radio channels is experimentally investigated in a tropical rainforest. The reported information is based on the analysis and modeling of continuous-wave (CW) envelope fading waveforms. It is found that the sapling movements can affect the radio-wave propagations and cause the variations on the received fields. Moreover, statistical analysis shows that the induced temporal variations can be conveniently modeled using a Rician distribution function. Its Rician K factor gradually decreases as the frequency increases or there are sapling movements.
Keywords :
Rician channels; UHF radio propagation; VHF radio propagation; forestry; Rician distribution function; UHF radio channels; UHF radiowave propagations; VHF radio channels; VHF radiowave propagations; continuous-wave envelope fading waveform analysis; continuous-wave envelope fading waveform modeling; sapling movements; statistical analysis; tropical rainforest; Analytical models; Antennas; Fading; Propagation; Rician channels; UHF measurements;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711469
