نتایج جستجو برای: reflection coefficient

تعداد نتایج: 227157  

2015
Kuan-Liang Chen Kun-Shan Chen Zhao-Liang Li Yu Liu

This paper deals with the modeling of bistatic scattering from a randomly rough surface. An advanced integral equation model is presented by giving its general framework of model developments, model expressions, and predictions of bistatic scattering for various surface parameters. Extension work to improve the model accuracy is also reported in more detail. In particular, the transition functi...

Journal: :Scientific and Technical Journal of Information Technologies, Mechanics and Optics 2015

2009
Kaijun Song Xiaobing Zhou Yong Fan

A multilayer soil model is presented for improved estimation of soil moisture content using the first-order small perturbation method (SPM) applied to measurements of radar backscattering coefficient. The total reflection coefficient of the natural bare soil including volume scattering contribution is obtained using the multilayer model. The surface reflection terms in SPM model are replaced by...

2013
Rintu Kumar Gayen Sushrut Das

-This paper presents, method of moments based analysis of broad-wall longitudinal slots array antenna using Multiple Cavity Modeling Technique (MCMT). Theoretical data for reflection coefficient, transmission coefficient, resonance length and resonance conductance have been obtained for two slots in two different waveguide. The theoretical data have been compared with Ansoft HFSS’s simulated da...

2011
Ermeey Abd. Kadir Husna Abd. Rahman

This technical paper presents a simulation of three probes reflectometer system for complex reflection coefficient measurement. This involves designing a circuit of Reflectometer using Genesys software. The simulation results and data from published Three-Probe Reflectometer measurement system is being compared to show the accuracy of the simulation results. Using the design circuit, a microstr...

Journal: :IEEE Trans. Geoscience and Remote Sensing 1993
Shira L. Broschat

Firstand second-order reflection coefficients are presented for the small slope approximation. The first-order reflection coefficient is identical to the Kirchhoff, or physical optics, result, and the secondorder reflection coefficient reduces to those of perturbation theory and the Kirchhoff approximation in the appropriate limits. Numerical results are obtained for acoustic or TE-polarized el...

Journal: :Physical review letters 2001
A V Andreev K A Matveev

We consider Coulomb blockade oscillations of thermoelectric coefficients of a single electron transistor based on a quantum dot strongly coupled to one of the leads. An analytic expression for the thermopower as a function of temperature T and the reflection amplitude r in the quantum point contact is obtained. Two regimes can be identified: T<>EC/r/2, where EC is the charging ene...

Journal: :Journal of the Society of Materials Science, Japan 1997

Journal: :The Journal of the Acoustical Society of America 1988

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