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ELT-029
Electromagnetism, propagation, antennae, stealthness - 2021

Radio propagation

Radioelectric propagation in open space and above ground

OBJECTIVE :

This training will enable the engineers concerned by the major fields of application of electromagnetism (telecommunications, radar, satellite navigation, electronic warfare ...) to have an overview of the problems of propagation of radio waves and to be able to to understand the physics.
The internship presents many applications of propagation models to the study of these systems either to optimize their performance or use, or to adapt them to the propagation conditions.

COURSE DURATION AND TIMETABLE :

The course lasts 5 days (30 hours) and includes:

  • 20 hours of lectures with theoretical principles and applications
  • 10 hours of exercises

GENERAL APPROACH :

The course is structured around 2 related areas:

  • An analytical look at each propagation phenomenon focused on understanding the mechanisms in order to evaluate their influence on a propagation assessment in various environments.
  • A look at systems as a whole, combining individual phenomena in order to better understand performance limitations due to propagation and to optimize the performance of these systems.

Engineering design and demonstrations of software tools integrating and modeling the multiple aspects of propagation illustrate these different areas and promote dialog among learners.

Helpful if also taking courses ELA 006, ELA 007, ELA 013, ELA 024 and SYS 036.

PREREQUISITE :

Course level: Basic

To fully benefit from this course, we recommended general knowledge of the propagation conditions of electromagnetic waves either in free space or on application systems and the processing of the corresponding signals.

COURSE DIRECTOR(S) :

Vincent GOBIN:
Project Manager " Modeling EM " at ElectroMagnetism and Radar Department at ONERA, Toulouse
 

Joël LEMORTON:
Toulouse site assistant to the Director of the ElectroMagnetism and Radar Department of ONERA, RadioCommunications and Radio Propagation expert

CONTENT :

UNDERSTANDING MECHANISMS OF PROPAGATION

  • Summary of basic properties
    • Maxwell equations
    • Ideal systems (weakening in free space, ideal links)
  • Propagation media
    • Ionosphere, troposphere
    • Climate and/or weather influence
    • Influence and nature of soils and vegetation and natural or urban obstacles
    • Urban environments (outdoor, indoor)
  • General laws of propagation
    • Surface wave and ground wave
    • Spherical Earth assumptions
    • Influence of soil, sea or atmosphere (reflection, attenuation, diffraction, etc.)
    • Atmospheric effects (attenuation, refraction, scintillation, diffusion ...)
    • Multipath propagation
  • Numerical modeling, propagation models
    • Numerical approaches to solving Maxwell's equations
    • Specialized propagation models
    • " Parabolic " equations
    • Statiscal, behavioral models
    • Channel models

INFLUENCE OF PROPAGATION IN THE CONTROL OF "SYSTEM" APPLICATIONS

  • Applications on themes
    • Land-space links, ionospheric and tropospheric effects on a link, compensation techniques propagation losses
    • Surface radar and radio beams: low-level spread over the sea or ground
    • Terrestrial or satellite communications with mobile and satellite navigation: propagation in urban areas or inside buildings
    • Aeronautical links
    • Jamming and noise, interference

WHEN AND WHERE :

Scheduled in French:

TOULOUSE: 4 to 8 October 2021

 

For the English realization, please, consult us.

COURSE FEES :

€1,960 excluding tax (20% VAT)

See general terms

 

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