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Publicado el: 2017-04-21
Tiempo de estudio aproximado: 1.25 - 1.50 h
Incluye sonido: no
Geospatial
This lesson provides a technical introduction to Global Navigation Satellite Systems (GNSS), covering theory, procedures, and accuracy issues. Aimed at professionals in a “geospatial science” field, including engineers, surveyors, meteorologists, geographers and GIS professionals, it will also be useful for emergency managers, and technically-inclined members of the general public with appropriate math and/or science background. For those who may currently see GPS/GNSS as a “black box”, this 1.5 hour lesson provides an understanding of the underlying principles and concepts to support correctly interpreting GPS results and obtaining accurate measurements under various circumstances.
Overall: Explain professional tools and methods, as well as underlying concepts of global navigation satellite systems (GNSS) and how they are used to achieve accurate and precise horizontal and vertical positioning results.
Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
national geodetic survey, geodesy, NGS, GPS, GNSS, GLONASS, trilateration, navigation message, signal-matching, pseudorange, PRN code, satellite clock bias, receiver clock bias, satellite clock bias, wavelength, phase measurement, integer count, integer ambiguity, integer ambiguity resolution, OPUS, positioning error, L1/L2, Ionospheric delay, satellite orbital errors, tropospheric error, multipath errors, double differencing, CORS, continuously operating reference stations, reference frame, datum, Cartesian coordinates, vertical datum, ellipsoidal heights, ellipsoid, ellipsoid height, geoid, orthometric, orthometric height, orthometric reference frame, elevation measurement, reference surface, NAVD88, NAVD 88, official U.S. datums, U.S. Global Positioning System, Global Navigation Satellite Systems, World Geodetic System 1984, WGS 84, WGS84