SEMIEMPIRICAL MODEL FOR MILLIMETER-WAVE VEGETATION ATTENUATION RATES

被引：38
作者：
SEVILLE, A
CRAIG, KH
机构：
[1] Radio Communications Research Unit, Rutherford Appleton Laboratory, Oxon OXll OQX, Chilton, Didcot
来源：
ELECTRONICS LETTERS | 1995年 / 31卷 / 17期
关键词：
RADIOWAVE PROPAGATION; SCATTERING;
D O I：
10.1049/el:19951000
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An improved empirical model of the attenuation rates due to propagation through vegetation at millimetre-wave frequencies is described. The measured vegetation attenuation rates of 38GHz signals were fitted to a two-parameter model with a final slope of OdB/m, to give an improvement in fit over the current ITU recommendation. However, this final slope is not a typical characteristic and is not seen at other frequencies. A new three-parameter model has been developed, which may have a nonzero final slope, giving the model greater freedom and therefore a better fit to measured data at ail frequencies.
引用
收藏
页码：1507 / 1508
页数：2
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