Journal of Surveying Engineering: Recent submissions
Now showing items 141-160 of 1001
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Method of Optimal Fitting of Existing Lower-Class Leveling Control Networks to Modernized National Higher-Class Networks
(American Society of Civil Engineers, 2019)The proposed method of optimal fitting of the existing lower-class leveling control networks to the modernized national higher-class networks is carried out in two stages. In the first stage, the network is fitted to the ... -
Closure to “Rigorous Estimation of Local Accuracies Revisited” by Tomás Soler and Jen-Yu Han
(American Society of Civil Engineers, 2019) -
Impact of Double Differences Correlation on the Adjustment of Small GNSS Networks
(American Society of Civil Engineers, 2019)The effect of correlations in global navigation satellite system (GNSS) double difference observation has been investigated, and it has been empirically found that such effect is small in local networks (baseline up to a ... -
Deformation Analysis of Geodetic Networks by Applying M<sub>split</sub> Estimation with Conditions Binding the Competitive Parameters
(American Society of Civil Engineers, 2019)In this paper, the use of the parameter estimation method in a split functional model in the analysis of geodetic network deformation is presented. Special attention is drawn to the situation when competitive parameters ... -
Ionospheric Response to the Total Solar Eclipse of August 21, 2017, and Its Impact on GNSS Positioning
(American Society of Civil Engineers, 2019)The solar eclipse on August 21, 2017, passed through North America and considerably affected the electron density in the ionosphere. By taking advantage of a global navigation satellite system (GNSS) for monitoring the ... -
Untitled
(American Society of Civil Engineers, 2018)The real-time kinematic precise point positioning (PPP-RTK) technique enables integer ambiguity resolution by providing single-receiver users with information on the satellite phase biases next to the standard PPP corrections. ... -
Nonparametric Bézier Representation of Polynomial Transition Curves
(American Society of Civil Engineers, 2018)In a series of papers in this journal, polynomial solutions of transition curves are introduced for road design, constructed as graphs of polynomial functions. These curves admit a simple expression in nonparametric Bézier ... -
Improving Precise Point Positioning Convergence Time through TEQC Multipath Linear Combination
(American Society of Civil Engineers, 2018)Pseudorange multipath and noise are still considered the major sources of error in precise point positioning (PPP) solutions. If multipath and noise were correctly mitigated from the pseudoranges, the accurate estimation ... -
Unified Astronomical Positioning and Orientation Model Based on Robust Estimation
(American Society of Civil Engineers, 2018)Astronomical positioning and orientation are important components of astronomical geodesy tasks, and they could also be used for real-time celestial navigation. In traditional methods, astronomical positioning and astronomical ... -
Hybrid Survey Networks: Combining Real-Time and Static GNSS Observations for Optimizing Height Modernization
(American Society of Civil Engineers, 2018)To derive ellipsoid heights on passive marks with centimeter-level accuracy, many current specifications require the collection and adjustment of long-duration, static, postprocessed global navigation satellite system ... -
Optimal Vertical Placement of Total Station
(American Society of Civil Engineers, 2018)When using the free station method, a total station (TS) is established by performing distance and angle observations toward a number of control points (CPs). The quality of the establishment is crucial for the quality of ... -
Tale of Two RTNs: Rigorous Evaluation of Real-Time Network GNSS Observations
(American Society of Civil Engineers, 2018)Real-time networks (RTNs) have become popular for global navigation satellite system (GNSS) surveys because highly accurate positions can be derived in seconds to a few minutes compared with the many minutes and hours ... -
Weighted Total Least Squares with Constraints: Alternative Derivation without Using Lagrange Multipliers
(American Society of Civil Engineers, 2018)This technical note presents alternative derivations for the weighted total least-squares (WTLS) problem subject to weighted and hard constraints. The derivations do not take into account the Lagrange multipliers, and the ... -
Three-Dimensional Virtual Highway Model for Sight-Distance Evaluation of Highway Underpasses
(American Society of Civil Engineers, 2018)When it comes to the safe design and operation of highways, sight distance is of utmost importance. The estimation of sight distance must be performed taking the three-dimensional (3D) nature of roadways and related features ... -
Improved Leveling Approach and Its Application in Civil Engineering
(American Society of Civil Engineers, 2018)An improved leveling method based on an updated definition of leveling is proposed for application in civil engineering projects. The approach is defined as the measurement of the elevation difference between the elevation ... -
Comparative Analysis of Online Static GNSS Postprocessing Services
(American Society of Civil Engineers, 2018)Several precise point positioning or relative positioning services are available online for postprocessing static global navigation satellite system (GNSS) data collected on a single mark. The accuracy of five services ... -
Efficient Planning and Acquisition of Terrestrial Laser Scanning–Derived Digital Elevation Models: Proof of Concept Study
(American Society of Civil Engineers, 2018)Development of a digital elevation model (DEM) with terrestrial laser scanning (TLS) point cloud data of inadequate resolution and/or completeness will result in a poor-quality DEM with significant gaps. In many cases, ... -
Reviewers
(American Society of Civil Engineers, 2018) -
Reliable Dynamic Monitoring of Bridges with Integrated GPS and BeiDou
(American Society of Civil Engineers, 2018)In recent years, global positioning system (GPS) has been widely used for the measurement of deflections of bridges. However, due to multipath and satellite signal obstructions caused by towers, cables, and passing vehicles, ... -
Recursive Least Squares with Additive Parameters: Application to Precise Point Positioning
(American Society of Civil Engineers, 2018)There are two different but equivalent forms to solve a least squares (LS) adjustment problem, namely batch LS (BLS) and recursive LS (RLS). The batch form is usually not an appropriate approach when measurements are ...