Ing Ind - Inf (Mag.)(ord. 270) - MI (474) TELECOMMUNICATION ENGINEERING - INGEGNERIA DELLE TELECOMUNICAZIONI
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ZZZZ
094788 - GEOPHYSICAL AND RADAR IMAGING
094789 - GEOPHYSICAL IMAGING
Obiettivi dell'insegnamento
Geophysical sounding is used for the remote detection and characterization of a target in the subsurface, producing images of its relevant properties for engineering, environmental, geological applications.
The course presents the seismic, electrical and electromagnetic investigation methods, from the fundamental theory up to the data collection and processing, with field lessons, computer lab sessions and presentation of case histories.
Course objective is to give the students competences and skills in the field of geophysical imaging.
Risultati di apprendimento attesi
Dublin Descriptors
Expected learning outcomes
1 - Knowledge and understanding
Students will gain clear understanding about:
the physics behind each geophysical method (seismic, electrical and EM)
the integration of surface and subsurface remote sensing technologies
signal processing methods for the treatment of seismic, electrical and EM geophysical data
2 - Applying knowledge and understanding
Students will be able to:
design a seismic, electrical or EM survey
define a seismic, electrical or EM data processing flow chart.
use and modify specialized SW to simulate a geophysical “scenario” (e.g. the elastic wave propagation in a layered medium) and to understand “experimentally” the theoretical principles.
3 - Making judgements
Students will be able to:
define the application fields and limits of seismic, electrical and EM geophysical method
analyze a geophysical image
read and understand a standard case history report
4 - Communication
Students will learn to:
write a technical document on a specific case study (e.g.: design and implementation of a remote sensing survey, algorithm development, system analysis, etc.)
explain the physical principles and the way of operation of seismic, electrical and EM geophysical methods
design prototypal demonstrations by modifying/tuning specialized SW deveoloped/provided during the course
Lifelong learning skills
Argomenti trattati
Seismic methods
Elastic properties of rocks, Hooke law, elastic wave equation, Born approximation, diffraction tomography.
Refraction and reflection seismic methods: data acquisition and processing.
Traveltime tomography.
Examples of application and analysis of case histories.
Electrical and electromagnetic methods
Electrical properties of the rocks. Electromagnetic wave propagation in low loss media. Conduction and displacement currents.
Electrical prospecting: data acquisition and inversion. Resistivity method, self-potential method, induced polarization method.
Electromagnetic prospecting: data acquistion and interpretation. Conductivity meter, metal detector, VLF-EM method, AFMAG method, magnetotelluric method.
Ground Penetrating Radar: data acquisition and processing.
Examples of application and analysis of case histories.
Principles of rock physics
Physical properties of porous rocks and geophysical measurements: constitutive equations, rock properties estimation and observability.
Field campaign
The course provides a field campaign with some geophysical equipment (GPR, metal detector, electrical resistivity meter) were the students are involved in all the phases, from the design of the acquisition, the data collection and processing and the drawing of a final report.
Prerequisiti
Introductory courses in signal processing and mathematics.
Modalità di valutazione
Oral exam and discussion of homeworks and of the field campaign. The homeworks (2-3) are assigned during the course, at the end of the presentation of each geophysical method. They consist in the utilization/design of simulation tools for building realistic scenarios and for discussing the imaging procedures. The exam can be given in italian or in english.
Bibliografia
Reynolds J.M., An Introduction to Applied and Environmental Geophysics, Editore: John Wiley & Sons.
Telford, W, Geldart, L., Sheriff, R., Applied Geophysics, Editore: Cambridge University Press Note:
for better insight
Software utilizzato
Nessun software richiesto
Forme didattiche
Tipo Forma Didattica
Ore di attività svolte in aula
(hh:mm)
Ore di studio autonome
(hh:mm)
Lezione
33:00
49:30
Esercitazione
11:00
16:30
Laboratorio Informatico
3:00
4:30
Laboratorio Sperimentale
3:00
4:30
Laboratorio Di Progetto
0:00
0:00
Totale
50:00
75:00
Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua
Inglese
Disponibilità di materiale didattico/slides in lingua inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese
Inglese