Journal of Surveying Engineering: Recent submissions
Now showing items 181-200 of 1001
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A Practical Quality Index for the Applied Helmert Transformation
(American Society of Civil Engineers, 2016)The Helmert transformation is used in different procedures in geodesy, photogrammetry, and in general in geomatics. The assessment of the accuracy of the transformation, and in particular of the transformed coordinates, ... -
GNSS Elevation-Dependent Stochastic Modeling and Its Impacts on the Statistic Testing
(American Society of Civil Engineers, 2016)Only the correct stochastic model can be applied to derive the optimal parameter estimation and then realize the precision global navigation satellite system (GNSS) positioning. The key for refining the GNSS stochastic ... -
Image-Based Approach for Road Profile Analyses
(American Society of Civil Engineers, 2016)Road profile extraction and analysis are essential tasks in transportation asset management. Current approaches use vehicle-borne laser sensors in order to precisely measure the variations in elevation along a specific ... -
Quality Control in Using GNSS CORS Network for Monitoring Plate Tectonics: A Western Australia Case Study
(American Society of Civil Engineers, 2016)A comprehensive quality-control approach is presented when monitoring motion of tectonic plates using Global Navigation Satellite System (GNSS) measurements of Continuously Operating Reference Station (CORS) networks. The ... -
Level Set Method for Surface Reconstruction and Its Application in Surveying
(American Society of Civil Engineers, 2016)A novel approach to a three-dimensional (3D) model creation from data sets obtained by laser scanning or photogrammetry is presented, including a description of the method and efficient numerical algorithms for 3D model ... -
Comparisons of Ground-Based and Building-Based CORS: A Case Study in the Region of Puerto Rico and the Virgin Islands
(American Society of Civil Engineers, 2016)This study investigated long-term observations from three pairs of closely spaced, continuously operating reference stations (CORS): STVI and VITH (2008–2014, 0.6 km apart), BYSP and PRHL (2008–2014, 3.2 km apart), and ... -
Empirical Research of Interpolation Methods in Distortion Modeling for the Coordinate Transformation between Local and Global Geodetic Datums
(American Society of Civil Engineers, 2016)Conformal coordinate transformations very often are not accurate enough to be used for the coordinate transformations between local and global geodetic datums because of the inhomogeneity of the spatial data in different ... -
Development of Real-Time PPP-Based GPS/INS Integration System Using IGS Real-Time Service for Hydrographic Surveys
(American Society of Civil Engineers, 2016)The multibeam echosounding technique is used to provide seafloor mapping at a relatively high-quality level and requires an accurate positioning and orientation system. Integration of a global positioning system (GPS) and ... -
On the Covariance Matrix of Weighted Total Least-Squares Estimates
(American Society of Civil Engineers, 2016)Three strategies are employed to estimate the covariance matrix of the unknown parameters in an error-in-variable model. The first strategy simply computes the inverse of the normal matrix of the observation equations, in ... -
Variance–Covariance Matrix of Transformed GPS Positions: Case Study for the NAD 83 Geodetic Datum
(American Society of Civil Engineers, 2016)This investigation introduces a rigorous mathematical transformation of variance–covariance matrices between a global geocentric frame and a plate-fixed geodetic frame. A practical example between the geocentric frame of ... -
New Method for Positional Cartographic Quality Control in Digital Mapping
(American Society of Civil Engineers, 2015) -
Astronomical Azimuth Determination by Lunar Observations
(American Society of Civil Engineers, 2016)The moon is the brightest celestial body in the night sky, and it is of some value when determining the astronomical azimuth on a cloudy or foggy night or in a light-polluted city when there is no visible star. Based on ... -
Enhanced Autocorrelation-Based Algorithms for Filtering Airborne Lidar Data over Urban Areas
(American Society of Civil Engineers, 2016) -
Assessment of Vertical Deformation of the Atatürk Dam Using Geodetic Observations
(American Society of Civil Engineers, 2016)The Atatürk Dam in Turkey, constructed on the Firat River, is one of the world’s largest rockfill embankment dams. It was built to harvest and conserve water and to serve crucial agricultural, social-economic, recreational, ... -
Determination of Geoid Undulation by Astro-Geodetic Method
(American Society of Civil Engineers, 2016) -
Selection of Initial Parameters in R‐Estimates Applied to Deformation Analysis in Leveling Networks
(American Society of Civil Engineers, 2016) -
New Approach to Arc Fitting for Railway Track Realignment
(American Society of Civil Engineers, 2016) -
The Clothoid Computation: A Simple and Efficient Numerical Algorithm
(American Society of Civil Engineers, 2016) -
Estimating the Baseline between CERN Target and LNGS Reference Points
(American Society of Civil Engineers, 2016) -
Assessing Digital Elevation Model Uncertainty Using GPS Survey Data
(American Society of Civil Engineers, 2016)