34741 - Geomatics M

Learning outcomes

Theoretical foundations of geomatics. European Galileo satellite systems for surveying and GPS. Permanent GPS stations and Real Time Kinematic.  Low-Cost Inertial Systems (IMU, compasses, gyroscopes). Terrestrial laser scanner and aereo.Integrazione systems rilievo.Vengono in particular covers the mathematical models needed allÂ'elaborazione data, their quality control I, and © to control the movement and deformation of soil and structures.

Course contents

RIVEDERE

REFERENCE SYSTEM AND COORDINATES FOR PLACEMENT
Astronomical and terrestrial reference systems and their implementation:
Reference system. Orientation parameters. International systems ITRS and ETRS. Frame Geodetic ITRFyy, ETRFnn. Propagation of location within a realization. Change of Frame for processing standard.
Space geodesy techniques for the definition of SR (outline)
Coordinate systems and transformations between them: geocentric coordinates, ellipsoids, geodetic local polar three-dimensional. Direct and reverse transition between coordinate systems. Transformation of Datum in Italy: from WGS84 to Roma40.
Relief GPS applications: grading of hills.

OBSERVATIONS AND MEASURING TOOLS TRADITIONAL AND SATELLITE
Tools for reliefs traditional GPS receivers: definitions, types, precision.
Intrinsic system tools for the topographical survey and satellite.
Integration of GPS and conventional surveys. Components of a basic GPS in different coordinate systems.
Geodetic networks and Raffittimento
National GPS Network IGM95. Monographs of the vertices Gratings processing

STATISTICS AND DATA PROCESSING
Multidimensional variables. Gaussian.
Propagation variance in general form. Applications to simple patterns of relief.
Confidence intervals of one-dimensional and two-dimensional. Calculation of standard error ellipse.
Parametric statistical tests. Setting and testing. Null hypothesis and alternative. I and type II errors. Meaning of non-centrality parameter of the alternative hypothesis.
Application to the assessment of quality of measurements and analysis of movements.
Parameter estimation using statistical methods Compensation least squares. Method for indirect observation
Functional model and statistics of compensation: the linear case
Solution in the linear case. Solution in the nonlinear case. . Criterion-end iterations
Statistical characteristics of the estimates of unknown parameters, measures, waste.
Application within geomatics
Equations to the comments, if linear gradients, position and basic GPS.
Equations observations, nonlinear case: azimuthal angles and distances.
Parameter error 1 D, 2 D, 3 D. Ellipses plains of absolute and relative error, the error ellipsoids.
Example of compensation. Calculation of settling a network Altitude. Analysis of data quality. Residue analysis. Relationship between observations and waste: array redundancy. Redundancy and local significance in the design of a network.
Tests for residue analysis. Reliability of internal and external measures.
Application to topographic networks. Datum compensation
Datum of compensation and its influence on the solution.
Framework of a network of raffittimento on a primary network: clearing bound adaptation for processing. Cases of networks 2 D, 3 D
Process of analysis and classification of a network application to: raffittimento a GPS network, control of movements and deformations.
GNSS
Systematic errors (bias) and their modeling in GNSS.
Broadcast ephemeris, precise, fast, ultra.
Types of relief GNSS: Static, DGPS. Kinematics.
Calculation bases GPS (survey carried out during the course)
RTK Survey: otf solutions, data master - Rover
Permanent GNSS station network: purpose, existing systems, station of Bologna.
Networks of stations for the relief in real time: Structure, types of sending the correction, precision and reliability.
LASER SCANNING

Laser Scanner plane. Method of relief. Terrestrial Laser Scanner. Principle of operation and general characteristics of various models. Performance. Applications: survey of cultural goods. Transcriptions of landslides

Readings/Bibliography

Reference books Notes of the course. Cover practically the course content

Assessment methods

Oral exam

Teaching tools

GPS+GLONASS Receivers and Total stations

Office hours

See the website of Maurizio Barbarella