The radiative energy transfer (RET) theory allows an analytical calculation of the attenuation of a scattering medium, such as vegetation. Recommendation ITU-R P.833-5 details the RET-based model and gives the necessary input parameters for several tree species. However, if the vegetation is different to that found in Recommendation ITU-R P.833-5, one may derive the input parameters for RET from measurements. This Report details how to derive the RET parameters from a measurement.
ITU-R REPORT P.2090-2006由国际电信联盟 IX-ITU 发布于 2006-01-01。
ITU-R REPORT P.2090-2006 在中国标准分类中归属于: M10 通信网综合。
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