Journal of Surveying Engineering: Recent submissions
Now showing items 461-480 of 1001
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Using Filtered and Semicontinuous High Rate GPS for Monitoring Deformations
(American Society of Civil Engineers, 2010)Multipath is a major sidereally repeating error affecting precise GPS positioning and deformation monitoring. Because satellite-receiver geometry repeats almost exactly every sidereal day, filtering can reduce multipath ... -
Increasing the Efficacy of the Conventional Deformation Analysis Methods: Alternative Strategy
(American Society of Civil Engineers, 2010)In deformation analysis, it is important to know whether the points detected by conventional deformation analysis (CDA) are really displaced or not, and also if there are any more displaced points in the network. It is ... -
Laser Scanner and Terrestrial Surveying Applied to Gravitational Deformation Monitoring of Large VLBI Telescopes’ Primary Reflector
(American Society of Civil Engineers, 2009)Laser scanning surveys were performed on the primary mirror of the very long baseline interferometry (VLBI) telescopes situated at Medicina and Noto observatories, with the specific purpose of investigating (1) gravity ... -
Global Navigation Satellite System Ambiguity Resolution with Constraints from Normal Equations
(American Society of Civil Engineers, 2010)Carrier phase ambiguity resolution is the key to precise positioning with a global navigation satellite system (GNSS); therefore, quite a few ambiguity resolution methods have been developed in the past two decades. In ... -
Clarifying the Relationship between Quality of Global Positioning System Data and Precision of Positioning
(American Society of Civil Engineers, 2010)This study selected five indexes to determine the relationship between data quality and positioning precision. These indexes are multipath on L1, multipath on L2, observations by cycle slips, clock offset, and clock ... -
Evaluation and Adaptation of the EGM2008 Geopotential Model along the Northern Nile Valley, Egypt: Case Study
(American Society of Civil Engineers, 2010)The performance of the new EGM2008 global geopotential model (GGM), over the northern Nile valley and delta in Egypt, has been evaluated. Over 305 global positioning system (GPS)/levelling stations, the standard deviation ... -
From the Conventional Total Station to the Prospective Image Assisted Photogrammetric Scanning Total Station: Comprehensive Review
(American Society of Civil Engineers, 2009)Surveying technology as regards total stations (TS) has changed in the last fifty years. The original idea of measuring and storing polar coordinates has been progressively revolutionized by means of reflectorless distance ... -
Terrestrial Laser Scanning of Extended Cliff Sections in Dynamic Environments: Parameter Analysis
(American Society of Civil Engineers, 2009)Substantial erosion of the unstable seacliffs along the economically important coastline of San Diego County, California, threatens existing developments and public safety. Time-series mapping of the seacliffs and beaches ... -
Concise Proof of Tienstra’s Formula
(American Society of Civil Engineers, 2009)The resection problem consists in finding the location of an observer by measuring the angles subtended by lines of sight from this observer to three known stations. Many researchers and practitioners recognize that ... -
Extended Receiver Autonomous Integrity Monitoring ( eRAIM ) for GNSS/INS Integration
(American Society of Civil Engineers, 2010)The integration of globe navigation satellite system (GNSS) with inertial navigation system (INS) is being heavily investigated as it can deliver more robust and reliable systems than either of the individual systems. In ... -
Use of Airborne and Terrestrial Lidar to Detect Ground Displacement Hazards to Water Systems
(American Society of Civil Engineers, 2009)We investigate the use of multiepoch airborne and terrestrial lidar to detect and measure ground displacements of sufficient magnitude to damage buried pipelines and other water system facilities that might result, for ... -
Measuring Dynamic Oscillations of a Small Span Cable-Stayed Footbridge: Case Study Using L1 GPS Receivers
(American Society of Civil Engineers, 2009)Highly redundant or statically undetermined structures, such as a cable-stayed bridge, have been of particular concern to the engineering community nowadays because of the complex parameters that must be taken into account ... -
Performance of RTK Positioning in Forest Conditions: Case Study
(American Society of Civil Engineers, 2009)This paper presents the performance of the real-time kinematic (RTK) technique in very severe conditions. The measurements were conducted in forest conditions during two different experiments. Two Global Positioning System ... -
New Method That Solves the Three-Point Resection Problem Using Straight Lines Intersection
(American Society of Civil Engineers, 2009)The three-point resection problem, i.e., the problem of obtaining the position of an unknown point from relative angular measurements to three known stations is a basic operation in surveying engineering. Several approaches ... -
New Method for Outlier Diagnostics in Linear Regression
(American Society of Civil Engineers, 2009)The detection of the discordant points, i.e., outliers, in linear regression models is a problem, which has been studied extensively. Huber’s -
Application of Least-Squares Variance Component Estimation to GPS Observables
(American Society of Civil Engineers, 2009)This contribution can be seen as an attempt to apply a rigorous method for variance components in a straightforward manner directly to GPS observables. Least-squares variance component estimation is adopted to assess the ... -
Probabilistic Approach for Modeling and Presenting Error in Spatial Data
(American Society of Civil Engineers, 2009)This paper presents a probabilistic approach to describe and visualize uncertainty and error in spatial data. The probabilistic approach assigns -
Review of The 3-D Global Spatial Data Model by Earl F. Burkholder
(American Society of Civil Engineers, 2009) -
Inverse and Compound Datum/Frame Transformations
(American Society of Civil Engineers, 2009)Transformations between local datums/frames have provided an indispensable method for expressing coordinates in the same datum. The advent of space-based geodetic techniques propelled the homogenization of national networks ... -
Analysis and Evaluation of Various Tropospheric Modeling Approaches for High-Precision GPS Kinematic Positioning over Medium Ranges and at High Altitude: Case Study
(American Society of Civil Engineers, 2009)In global positioning system (GPS) positioning, the tropospheric delay is a systematic error. Mismodeling of the tropospheric delay results in a degradation of the estimated height component, and thus constitutes a limitation ...