Metrika članka

  • citati u SCindeksu: 0
  • citati u CrossRef-u:0
  • citati u Google Scholaru:[=>]
  • posete u poslednjih 30 dana:6
  • preuzimanja u poslednjih 30 dana:4
članak: 1 od 1  
Telfor Journal
2017, vol. 9, br. 1, str. 55-60
jezik rada: engleski
vrsta rada: neklasifikovan

The excess attenuation of electric field in the presence of deciduous trees
(naslov ne postoji na srpskom)
Univerzitet u Beogradu, Elektrotehnički fakultet



Algoritmi i softver za simulacije u frekvencijskom i vremenskom domenu RF podsistema i elektromagnetskih senzora u ICT (MPNTR - 32005)


(ne postoji na srpskom)
Excess attenuation of electric field of an electromagnetic wave propagating through deciduous forest is approximated with two novel analytical formulas. The coefficients of those formulas were obtained through a computationally intensive optimization process by fitting the simulation results obtained from stochastic 3D and 2D models of forests. The electric field was either vertically or horizontally polarized, at frequencies 30 MHz, 60 MHz and 100 MHz. According to numerical experiments, these formulas predicted the excess attenuation within several decibels, up to at least 100 MHz. Nevertheless, the proposed formulas matched very well the measured data from literature below 1 GHz, and neatly followed the measurements even up to 10 GHz. Therefore, the frequency range considered in the numerical experiments can be extrapolated at least tenfold.

Ključne reči

attenuation; approximation formula; electromagnetic waves; modeling; full-wave electromagnetic simulation; trees


*** (2016) Attenuation in vegetation. ITU-R P.833-9, September
Azevedo, J.A. R., Santos, F.E. S. (2011) An Empirical Propagation Model for Forest Environments at Tree Trunk Level. IEEE Transactions on Antennas and Propagation, 59(6): 2357-2367
Chukhlantsev, A.A., Shutko, A.M., Golovachev, S.P. (2003) Attenuation of electromagnetic waves by vegetation canopies in the 100-10000 MHz frequency band. Journal of Electronics, February;, Russian Academy of Sciences
Đorđević, A. (2012) Electromagnetics. Serbia: School of Electrical Engineering, University of Belgrade
Horak, P., Pechac, P. (2012) Frequency dependence of vegetation shadowing loss for satellite services. u: 2012 6th European Conference on Antennas and Propagation (EUCAP), Institute of Electrical and Electronics Engineers (IEEE), str. 2445-2448
Kolundzija, B.M., Olcan, D.I. (2006) Multiminima Heuristic Methods for Antenna Optimization. IEEE Transactions on Antennas and Propagation, 54(5): 1405-1415
MATLAB (2011) The language of technical comp. MathWorks
Meng, Y.S., Lee, Y.H., Ng, B.C. (2010) Path loss modeling for near-ground vhf radio-wave propagation through forests with tree-canopy reflection effect. Progress In Electromagnetics Research M, 12: 131-141
Michalewicz, Z., Fogel, D. (1999) How to Solve It: Modern Heuristics, Appendix A. Springer, pp. 429-431
Mrdaković, B., Olcan, D., Kolundžija, B. (2015) Full-wave modeling of stochastic trees for radar cross section calculation. u: Antennas and Propagation (EuCAP), 9th EU Conf, pp. 1-4
Nelder, J. A., Mead, R. (1965) A Simplex Method for Function Minimization. Computer Journal, 7(4): 308-313
Olcan, D., Kolundžija, B. (2004) Precise and efficient EM modeling of trees with WIPL-D code. u: ACES Conference
Perovic, J., Olcan, D. (2016) The excess attenuation of electric field in the presence of deciduous trees. u: 2016 24th Telecommunications Forum (TELFOR), Institute of Electrical and Electronics Engineers (IEEE), str. 1-4
Perović, J., Olcan, D., Kolundžija, B. (2017) The excess attenuation of propagating wave in the presence of human crowds. u: 11th EU Conf. on Antennas and Prop. (EuCAP), pp 1335-1339
Poh, K.C., Seong-Eun, Y., Seong, H.K., Daeyoung, K. (2011) Wind-Blown Foliage and Human-Induced Fading in Ground-Surface Narrowband Communications at 400 MHz. IEEE Transactions on Vehicular Technology, 60(4): 1326-1336
Rodriguez, I., Abreu, R., Almeida, E.P. L., Lauridsen, M., Loureiro, A., Mogensen, P. (2016) 24 GHz cmwave radio propagation through vegetation: Suburban tree clutter attenuation. u: 2016 10th European Conference on Antennas and Propagation (EuCAP), Institute of Electrical and Electronics Engineers (IEEE), str. 1-5
Seke, S., Ceran, S., Cerezci, O., Citkaya, A. (2015) Attenuation of vegetation and snow on RF wireless communication. u: 31st International Review of Progress in Applied Computational Electromagnetics (ACES), pp 1-2
Tavakoli, A., Sarabandi, K., Ulaby, F.T. (1991) Horizontal propagation through periodic vegetation canopies. IEEE Transactions on Antennas and Propagation, 39(7): 1014-1023
Tewari, R.K., Swarup, S., Roy, M.N. (1990) Radio wave propagation through rain forests of India. IEEE Transactions on Antennas and Propagation, 38(4): 433-449
Torrico, S.A., Bertoni, H.L., Lang, R.H. (1998) Modeling tree effects on path loss in a residential environment. IEEE Transactions on Antennas and Propagation, 46(6): 872-880
Wang, F., Sarabandi, K. (2007) A Physics-Based Statistical Model for Wave Propagation Through Foliage. IEEE Transactions on Antennas and Propagation, 55(3): 958-968