Politecnico di Torino
Politecnico di Torino
Politecnico di Torino
Academic Year 2009/10
Satellite navigation systems
Master of science-level of the Bologna process in Telecommunication Engineering - Torino
Teacher Status SSD Les Ex Lab Tut Years teaching
Dovis Fabio ORARIO RICEVIMENTO A2 ING-INF/03 4 1 0 0 12
SSD CFU Activities Area context
ING-INF/03 5 B - Caratterizzanti Ingegneria delle telecomunicazioni
Objectives of the course
The module aims at introducing the leading edge localisation technologies, based on the use of Satellite navigation systems, as for example, the American Global Positioning System e the European system Galileo.

The module starting from the functional principles of position estimation and navigation technologies, describes the architectures of the satellite systems and the implementation and processing aspects related to user receivers.
In particular the lessons are focused to the study of navigation signals and their digital processing, identifying the uncertainty sources and the positioning errors.
Detection and mitigation techniques of disturbing effects are also discussed.

Exercises and demonstration will help the students to face case studies and simplified problems related to the signal processing in navigation receiver and the architectural design of mass-market and professional receivers.

As examples of applications GNSS positioning in Aeronautics is introduced comparing the performance with present radio aided systems (VOR-DME, ILS).
Location based services emerging by the synergies between personal wireless communications and positioning (NAV/COM systems and Assisted GNSS) will be also described.
Localisation techniques:
' Location estimation techniques based on direction of arrival, time of arrival, differential time of arrival observation
' Conical, spherical, hyperbolical methods
' Uncertainty causes

Basics of Reference Systems and Satellite Orbits

navigation principles
' Position estimation
' The Geometrical Dilution of Precision

GPS system description
' System architecture
' Signals properties
' Codes generation
' The integrity problem

Error Sources

GPS system description
' System architecture
' Binary Offset Carrier modulations

navigation receivers: from the flight time estimation to the user position
' Receiver architecture:
' Acquisition and tracking of GNSS signals
' Estimation procedures
' Performance bounds
' Multipath effects

applications GNSS positioning in Aeronautics
' comparison with present radio aided systems (VOR-DME, ILS).
Location based services
' personal wireless communications and positioning
' NAV/COM systems
' Assisted GNSS
Kaplan, E. D., Hegarty C.H. Understanding GPS: principles and applications (II edition), Artech House, Norhood, MA, 2006

Parkinson B., Spilker J. J. , Global Positioning System: theory and applications, Vol. I e Vol. II, American Institute of Aeronautics, 1996.

Misra P., Enge P. Global Positioning System: Signals, Measurements, and Performance, Ganga-Jamuna press (http://www.navtechgps.com/)

Tsui, J. B. Y., Fundamentals of Global Positioning System (II edition), John Wiley & Sons, New York, 2006.

Class notes will be provided by the teacher
Check availability at the library

Programma definitivo per l'A.A.2009/10

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WCAG 2.0 (Level AA)