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Measurements and prediction model optimisation for signal attenuation in vegetation media at centimetre wave frequencies

Measurements and prediction model optimisation for signal attenuation in vegetation media at centimetre wave frequencies

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The effects of vegetation media on the planning and design of radio links at microwave and millimetre wave frequencies are considerable and must be accounted for by radio system operators and users. The paper presents propagation models for the excess attenuation of signals caused by such media whose mathematical descriptions have been optimised using measured data obtained at three sites. The paper shows that one of the models which expresses the attenuation as a function of frequency and depth of vegetation gives close predictions for the two broad generic cases of trees ‘in-leaf’ and ‘out-of-leaf’ and can be recommended for use in the range 10–40 GHz.

References

    1. 1)
      • M. Al-Nuaimi , A. Hammoudeh . Attenuation functions of microwave signals propagated through trees. Electron. Lett. , 14 , 1307 - 1308
    2. 2)
      • M.O. Al-Nuaimi , A.M. Hammoudeh . Measurements and prediction of attenuation and scatter of microwave signalsby trees. IEE Proc. H , 2 , 70 - 76
    3. 3)
      • , : `Influence of terrain irregularities and vegetationon tropospheric propagation', 236-6, Report, 1986.
    4. 4)
      • R.B.L. Stephens , M.O. Al-Nuaimi . Attenuation measurement and modellingin vegetation media at 11.2 GHz and 20 GHz. Electron. Lett. , 20 , 1783 - 1785
    5. 5)
      • Weissberger, M.A.: `An initial critical summary of models for predictiong theattenuation of radio waves by foliage', ECAC-TR-81-101, 1981.
    6. 6)
      • Stephens, R.B.L.: `A study and modelling of the propagation effects of vegetation onradiowaves at centimetre-wavelength frequencies', 1998, PhD, University of Glamorgan.
    7. 7)
      • F.K. Schwering , E.J. Violette , R.H. Espeland . Millimeter-wave propagation in vegetation: experiments and theory. IEEE Trans. Geosci. Remote Sensing , 3 , 355 - 367
    8. 8)
      • , : `Radiowave propagation effects on next-generation fixed-servicesterrestrial telecommunications systems', Final report, .
    9. 9)
      • Johnson, R.A., Schwering, F.: `A transport theory of millimeter wavepropagation in woods and forests', CECOM-TR-85-1, 1985.
    10. 10)
      • A. Seville , K.H. Craig . A semi-emphirical model for millimetrewavevegetation attenuation rates. Electron. Lett. , 17 , 1507 - 1508
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