Temperature Dependable Microwave Dielectric Model for Moist Soils
In this paper, the temperature dependable dielectric model for moist soils was developed on the basis of the generalized refractive mixing dielectric model (GRMDM) recently proposed by Mironov et al. to provide for substantially less error, as compared to the most popular model by Dobson et al.. This model was substantiated with the use of the dielectric data measured by Curtis et al.. For a specific soil type, the temperature dependable GRMDM was shown to make as accurate predictions of this value, as a function of volumetric moisture, wave frequency, and temperature, as the dielectric data measurement accuracy is. The error of dielectric predictions was tested in the range of temperatures from 10 to 40℃, frequencies from 300MHz to 26.5 GHz, and moistures varying from those of dry soil to the ones corresponding to full soil water capacity. The Silty Sand soil tested contained 14, 9, and 77％ of clay, silt and sand respectively. In addition, the error of dielectric predictions with the temperature dependable GRMDM was compared with that of Dobsons model, proving a lot more accurate predictions.
V.L.Mironov S.V.Fomin
Kirensky Institute of Physics,SB RAS Krasnoyarsk,Russia
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
831-835
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）