70066 - Geomatics (1) (LM)

Learning outcomes

At the end of the course the student acquires full skills in the investigation of land properties, about both the natural and anthropogenic properties, through an integrated and systemic approach able to select realiable tools and techniques to acquire, integrate, treat, analyze, archive, and distribute georeferenced space data with continuity on digital media.

Course contents

MODULE 1. Basics about geodetic measurements
Useful basics: theory of errors and their assessment: fundamentals of probability and statistics. Measurements: Basics of geodesy: introduction to the reference surfaces, geodetic and topographic fields. Angles, distance and elevations.
Traditional horizontal surveys: Traditional and modern instrumentation: theodolites, total stations, diastimeters and surveyor's levels. Instruments. Topographic survey methods: horizontal survey by intersection schemes and polygonal. Densification of network. Definition of quotes. Reference surfaces. Measuring quotes by high precision spirit levelling.
MODULE 2. GNSS POSITIONING
GNSS (Global Navigation Satellite System): constellation, ground and users segments. Signal. GNSS observables: codes and carriers. Positioning technologies: absolute, differential and relative methods. Errors. GNSS networks: designing, measurements, data processing and measurements adjustments. Modern spatial geodetic reference frames. Infrastructures of GNSS permanent stations.
MODULO 3. PHOTOGRAMMETRY AND LASER SCANNING
Basics of photogrammetry: Photogrammetric surveys. Sensors and data processing.
Laser Scanning: Concepts and instruments. Design of laser surveys. Data processing.

Readings/Bibliography

Lecture notes by the teacher.

Further reading:
- L. Baratin, V. Grassi. 'Topografia. Teoria, applicazioni, esercizi'. Pitagora (principalmente per esercizi)
- L. Biagi “I fondamentali del GPS”, Geomatics Workbooks, vol. 8, 2009
- Crosilla F., Galetto R. 'La tecnica del laser scanning - Teoria ed applicaizoni', CISM Udine, 2006
- Crosilla F., Dequal S. 'Laser scanning terrestre', CISM Udine

Teaching methods

Frontal lesson with in-depth sessions about specific topics and discussion of valuable case study where the ability to design and perform a survey is required.

Assessment methods

Final examination takes place in oral session. During the interview, the teacher will test the candidate's knowledge and understanding of the basic concepts of surveying in Geomatics and evaluate the ability to apply them towards real  study cases. It will also verify the transversal knowledge of the topics covered by the program and the acquisition of the fundamental technical terms that characterize the subject. Finally, the ability to draw conclusions will be evaluated.

Teaching tools

The sessions will be held in the laboratory of Geomatics with devices: single PC stations, open Source/commercial software for digital image processing; Open source GIS software and video-projector.

Office hours

See the website of Francesco Mancini