Dr. Oleg A. Krasnov

Research Scientist

Microwave Sensing,
Signals and Systems
_{(former MTSR/IRCTR)}

      TU Delft

               

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Microwaves and Propagation effects: Interactive Demo Modules

Collection of interactive demo's related to electromagnetic waves, their propagation and scattering, use in remote sensing and telecommunications.
Each demo provides an interactive way to run it and see the results.

 

EM Wave

• Travel Waves. - Adobe Flash demo
• Propagation Constant and Intrinsic Impedance. - [1], Code 2.2

Polarization of EM Waves

• Polarization State of Fully-Polarized Waves. - [1], Code 2.1
• Polarization State of Partially-Polarized Waves.
• Polarization Pattern of Polarized Wave.
• Fully Polarized Wave representation in different Polarization Basis.

Reflection of EM Waves

• Reflection and Transmission at Planar Boundary. - [1], Code 2.3
• Reflection by Two-Layer Composite: Thickness dependence. - [1], Code 2.4, updated
• Reflection by Two-Layer Composite: Angular dependence.

EMW Propagation above the Earth Surface

• Relative Received Power as a function of the receiver antenna height.

Antennas

• Helix antenna design and construction details - [2]
• Array Factor for Uniformly Spaced Array. - [1], Code 3.1
• Array Factor for Uniformly Spaced Array with Linear Phase Distribution. - [1], Code 3.2

Dielectric Properties of Natural Earth Materials at Microwave Frequences

• Relative Dielectric Constant of Pure Water - [1], Code 4.1
• Relative Dielectric Constant of Saline Water - [1], Code 4.2
• Relative Dielectric Constant of Pure Ice - [1], Code 4.3
• TVB Dielectric Model for Heterogeneous Mixtures- [1], Code 4.4
• Relative Dielectric Constant of Dry Snow- [1], Code 4.5
• Relative Dielectric Constant of Wet Snow- [1], Code 4.6
• Relative Dielectric Constant of Soils- [1], Code 4.7
• Relative Dielectric Constant of Vegetation Material
• Database of Refractive indexes (mostly for optics) (external web-site)

Rain Characteristics

• Exponential Raindrop Size Distributions as a function of Rain Intensity
• Shape of Raindrops with different size
• Javascript Mie scattering calculator (expernal web-site)

Radiometry

• Emissivity of Homogeneous Medium with Planar Boundary - [1], Code 6.1
• Emissivity of Two-Layer Composite - [1], Code 6.2

Microwaves Interaction with Atmospheric Constituents

• Attenuation Coefficient of Water Vapor (expernal web-site)
• Attenuation Coefficient of Water Vapor (expernal web-site)
• Attenuation Coefficient of Oxygen (expernal web-site)
• Gaseous Attenuation Coefficient (expernal web-site)
• Water Cloud Extinction Coefficient (expernal web-site)
• Ice Cloud Extinction Coefficient

Volume Scattering Models and Observations

• S²RT/R Backscattering from Rayleigh Layer with Diffuse Upper Boundary - [1], Code 11.1
• S²RT/R Backscattering from Rayleigh Layer with Distinct Upper Boundary - [1], Code 11.2
• Mie Extinction of Dry Snow - [1], Code 11.3
• Mie Extinction of Wet Snow - [1], Code 11.4

Emission Models and Observations

• Coherent Emissivity of a Two-Layer Composite - [1], Code 12.7
• Incoherent Emissivity of a Two-Layer Structure - [1], Code 12.8

Reference

• [1] Copy of the interactive versions of some of the MATLAB Codes from the book "Microwave Radar and Radiometric Remote Sensing" by Fawwaz T. Ulaby and David G. Long ( source).
• [2] Web-page
• [3] Flash Animations for Physics