Weissberger’s modified exponential decay model, or simply, Weissberger’s model, is a radio wave propagation model that estimates the path loss due to the presence of one or more trees in a point-to-point telecommunication link. This model belongs to the category Foliage or Vegetation models.
Introduction to RF Propagation, John S. Seybold, 2005, John Wiley and Sons.
Radio Propagation in Cellular Networks, N. Blaunstein, 2000, Artech House
The Mobile Radio Propagation Channel, J. D. Parsons, 2000, Wiley
Mark A. Weissberger (1982). . Final Report Electromagnetic Compatibility Analysis Center. Bibcode:1982ecac.rept.....W. Archived from the original (PDF) on April 8, 2013. Retrieved 2012-02-01.
January 07, 2023
weissberger, model, weissberger, modified, exponential, decay, model, simply, weissberger, model, radio, wave, propagation, model, that, estimates, path, loss, presence, more, trees, point, point, telecommunication, link, this, model, belongs, category, foliag. Weissberger s modified exponential decay model or simply Weissberger s model is a radio wave propagation model that estimates the path loss due to the presence of one or more trees in a point to point telecommunication link This model belongs to the category Foliage or Vegetation models Contents 1 Applicable to under conditions 2 Coverage 3 History 4 Mathematical formulation 5 Points to note 6 Limitations 7 See also 8 References 9 Further readingApplicable to under conditions EditThis model is applicable to the cases of line of sight propagation Example is microwave transmission This model is only applicable when there is an obstruction made by some foliage in the link i e In between the transmitter and receiver This model is ideal for application in the situation where the LOS path is blocked by dense dry and leafy trees Coverage EditFrequency 230 MHz to 95 GHz 1 Depth of foliage up to 400 mHistory EditFormulated in 1982 this model is a development of the ITU Model for Exponential Decay MED Mathematical formulation EditWeissberger s model is formally expressed as L 1 33 f 0 284 d 0 588 if 14 lt d 400 0 45 f 0 284 d if 0 lt d 14 displaystyle L begin cases 1 33 f 0 284 d 0 588 mbox if 14 lt d leq 400 0 45 f 0 284 d mbox if 0 lt d leq 14 end cases where L The loss due to foliage Unit decibels dB f The transmission frequency Unit gigahertz GHz d The depth of foliage along the path Unit meters m Points to note EditThe equation is scaled for frequency specified in GHz range Depth of foliage must be specified in meters m Limitations EditThis model is significant for frequency range 230 MHz to 95 GHz only as pointed out by Blaunstein This model does not define the operation if the depth of vegetation is more than 400 m This model predicts the loss due to foliage The path loss must be calculated with inclusion of the free space loss 2 See also EditFresnel zone Radio propagation modelReferences Edit Radio propagation in cellular networks N Blaunstein Introduction to RF propagation John S SeyboldFurther reading EditIntroduction to RF Propagation John S Seybold 2005 John Wiley and Sons Radio Propagation in Cellular Networks N Blaunstein 2000 Artech House The Mobile Radio Propagation Channel J D Parsons 2000 Wiley Mark A Weissberger 1982 An initial critical summary of models for predicting the attenuation of radio waves by trees Final Report Electromagnetic Compatibility Analysis Center Bibcode 1982ecac rept W Archived from the original PDF on April 8 2013 Retrieved 2012 02 01 Retrieved from https en wikipedia org w index php title Weissberger 27s model amp oldid 1097329078, wikipedia, wiki, book, books, library,
