Hollow cylinder microwave model for stems

被引：6

作者：

Della Vecchia, A ^{[1
]}

Guerriero, L ^{[1
]}

Bruni, I ^{[1
]}

Ferrazzoli, P ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, DISP, I-00133 Rome, Italy

来源：

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS | 2006年 / 20卷 / 03期

关键词：

D O I：

10.1163/156939306775701795

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：

Present electromagnetic models represent crop stems as full homogeneous cylinders. However, several ground measurements indicate that mature stems are hollow. In this paper, a model is presented which describes stems as hollow dielectric cylinders. The field on the surface of a hollow infinite cylinder is found at first, then applying the equivalence theorem, the scattered field from a hollow cylinder of finite length and any radius is obtained, and it is applied to the typical dimensions and permittivities of wheat stems. The effects of stem hollowness on microwave attenuation are investigated for a case study. Then, the extinction and bistatic scattering cross sections of the cylinder are included in the model developed at Tor Vergata University in order to study the effects of stem hollowness on crop backscattering.

引用

页码：301 / 318

页数：18

共 18 条

[1]

Abramowitz M, 1964, HDB MATH FUNCTIONS G

[2] A fully polarimetric multiple scattering model for crops [J].