The Scattering Parameters And Directional Coupler Analysis Of Characteristically Terminated Three-line Structures In An Inhomogeneous Medium

In the age of digital transformation of production processes in industry and science the development and design of intelligent flow sensors for granular and liquid substances transferring through pipelines becomes more important. With this in view new approaches for improving the accuracy of microwave flowmeters are proposed. Taking into account the characteristics ofelectromagnetic waves propagating through a pipeline, a wave scattered by inhomogeneities of the controlled medium is analyzed. Features of the transformation of the polarized scattered wave limiting the geometric dimensions of the pipeline and optimizing the values of the useful scattered signal are revealed. Expediency of collection of the information signal with orthogonal polarization of the scattered wave and through a directional coupler is substantiated. The method of estimating the measurement accuracy with reference to the signal-to-noise ratio at the input of the processing device is given. The research results can be used in cryogenic machine engineering to measure volume and mass flows of liquid cryogenic products.

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Electromagnetic wave propagation in a randomly inhomogeneous medium as a problem in mathematical statistical physics

Uspekhi Fizicheskih Nauk ◽

10.3367/ufnr.0174.200402e.0177 ◽

2004 ◽

Vol 174 (2) ◽

pp. 177 ◽

Cited By ~ 8

Author(s):

Valerii I. Klyatskin

Keyword(s):

Wave Propagation ◽

Electromagnetic Wave ◽

Inhomogeneous Medium ◽

Statistical Physics ◽

Electromagnetic Wave Propagation

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Experimental investigation and modelling of light scattering in a-Si:H solar cells deposited on glass/ZnO:Al substrates

MRS Proceedings ◽

10.1557/proc-715-a13.3 ◽

2002 ◽

Vol 715 ◽

Cited By ~ 3

Author(s):

J. Krc ◽

M. Zeman ◽

O. Kluth ◽

F. Smole ◽

M. Topic

Keyword(s):

Surface Roughness ◽

Experimental Investigation ◽

Solar Cells ◽

Angular Distribution ◽

Light Scattering ◽

Optical Model ◽

Distribution Functions ◽

Interface Roughness ◽

Scattering Parameters ◽

Good Agreement

AbstractThe descriptive scattering parameters, haze and angular distribution functions of textured ZnO:Al transparent conductive oxides with different surface roughness are measured. An approach to determine the scattering parameters of all internal interfaces in p-i-n a-Si:H solar cells deposited on the glass/ZnO:Al substrates is presented. Using the determined scattering parameters as the input parameters of the optical model, a good agreement between the measured and simulated quantum efficiencies of the p-i-n a-Si:H solar cells with different interface roughness is achieved.

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Ray Trajectories in the Axial-Symmetric Inhomogeneous Medium of a Dye Laser

Telecommunications and Radio Engineering ◽

10.1615/telecomradeng.v55.i2.90 ◽

2001 ◽

Vol 55 (2) ◽

pp. 7

Author(s):

V. V. Shevchenko

Keyword(s):

Inhomogeneous Medium ◽

Dye Laser ◽

Ray Trajectories

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Single Image Dehazing by Predicting Atmospheric Scattering Parameters

London Imaging Meeting ◽

10.2352/issn.2694-118x.2020.lim-11 ◽

2020 ◽

Vol 2020 (1) ◽

pp. 74-77

Author(s):

Simone Bianco ◽

Luigi Celona ◽

Flavio Piccoli

Keyword(s):

Reference Image ◽

Single Image ◽

Scattering Parameters ◽

Image Dehazing ◽

Atmospheric Scattering ◽

Local Structures ◽

Full Reference ◽

Reconstruction Quality ◽

Single Image Dehazing

In this work we propose a method for single image dehazing that exploits a physical model to recover the haze-free image by estimating the atmospheric scattering parameters. Cycle consistency is used to further improve the reconstruction quality of local structures and objects in the scene as well. Experimental results on four real and synthetic hazy image datasets show the effectiveness of the proposed method in terms of two commonly used full-reference image quality metrics.

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