Teacher
prof. Fabio CROSILLA
Credits
6 CFU
Objectives
To present the main methods of design, survey, computation and analysis of spatial data that allow a metrologically correct description of the environment and of the buildings.
Acquired skills
- To understand and to properly use the terminology and the methods of the surveying technique
- To know the technical characteristics and proper use of Surveying instruments
- To set up the measurements schemes and solve the point positioning problems on the terrestrial surface, according tothe references systems
-To solve the adjustment problems of the acquired measures, and evaluate using statistical tools the precision and reliability of the results
Contents
Course Introduction: Aims, operational phases and different kinds of Surveying activities (2 hours)
Reference systems: Global reference systems: cartesian, geocentic, and geographical coordinates, and transformation formulas. Ellipsoids and local sphere. Local reference systems: cartographic and local tangent planes. The geodetic datum problem. (4 hours)
Altimetry: Geoid and equipotential surfaces. Orthometric height and correction. Ellipsoidal heights. Geoidal ondulation. (4 hours)
Instruments and methods of terrestrial surveying: Azimuthal and zenith angular measures,characteristics of Theodolites. Range measures by electromagnetic waves.Characteristics of Distancemeters. Differences in height measures and levels. (14 hours)
Instruments and methods of satellite surveying: The Global Positioning System (GPS): range and phase measurements. Differential methods. Static and kinematic surveying. Networks of permanent stations. (8 hours)
Schemes and surveying procedures: The topographic network, intersection and resection problems, traverses, solving formulas. (4 hours)
Statistical outlines for surveying: Statistical variables and functions. Tchebychef di sequality. Variance propagation law. Maximum likelihood estimation and Least squares principle. Hypothesis tests. (4 hours)
Measurements adjustment: Empirical adjustment of traverses. Rigorous network adjustment by indirect measures, and by conditioned direct measures methods. Precision and reliability network analysis. (12 hours)
Guuided tours (4 hours)
References
- F.Crosilla, C.Marchesini, D.Visintini: Lezioni di Topografia Generale. Vol. 1: Il rilevamento topografico, 2001 (fornito dagli autori)
Additional material or information on line http://geomatica.uniud.it
Type of exam
Written and oral
