Published in Scientific Papers. Series E. Land Reclamation, Earth Observation & Surveying, Environmental Engineering, Vol. IV
Written by Daniela IORDAN, Gabriel POPESCU
The paper aimed to present, for the different land cover categories, the accuracy of LiDAR measurements obtained witha light detection and ranging dataset from a test area of the hydrographical basin Somes-Tisa in Romania. It ispresented the geometric geolocation accuracy of LiDAR footprint for few land cover categories, utilizing an UAVconfiguration that supports a sensor designed to scan the surface of the Earth, a DGPS and INS/IMU system. There arepresented the geometric accuracies, for LiDAR footprints on the ground, as a relationship between the inputparameters, which include errors of the orbital state, attitude information of the UAV and the look vector errors of theactive sensor (LiDAR scanner), that give us the coordinates of the point of intersection of the line of sight scanningsystem and the Earth's surface as a function of: terrestrial ellipsoid surface, UAV position, UAV attitude (spatialsituation) and the orientation of the LiDAR scanner. As a conclusion, the paper proposes the vertical accuracyrequirements that are recommended when analyzing elevation data generated using airborne light detection andranging or laser technology, because vertical accuracy is the principal criterion in specifying the quality of elevationdata, and vertical accuracy requirements depending upon the intended users applications.
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Geomatics
