Journal of Surveying Engineering: Recent submissions
Now showing items 581-600 of 1001
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Quality of Building Extraction from IKONOS Imagery
(American Society of Civil Engineers, 2005)Now to ensure the quality of automatic extraction of buildings from aerial and space imagery is not comprehensively understood. Dedicated efforts are needed in examining both the theoretical and practical aspects of the ... -
Hidden Point Bar Method for Precise Heighting
(American Society of Civil Engineers, 2004)Precise heighting by the hidden point bar method is investigated. The investigation includes development of the mathematical model, calibration of the hidden point bar, and comparison with precise leveling and precise trig ... -
Different Method for Determining Normal Section Curvatures on Earth Ellipsoid
(American Society of Civil Engineers, 2004)Normal curvatures formed at a point on any surface and relations regarding these are analogous to the deformations formed on distorted surfaces. By using the analogy, which is mentioned for the first time in this paper, ... -
Method for Optimizing Earthwork Considering Soil Properties in the Geometric Design of Highways
(American Society of Civil Engineers, 2004)Economic considerations are one of the most fundamental elements affecting the standards of highway projects. Therefore, cut-fill balancing and minimizing the amount of earthwork are significant factors that can decrease ... -
Butterworth Low-Pass Filter for Processing Inertial Navigation System Raw Data
(American Society of Civil Engineers, 2004)The paper tries to apply the Butterworth low-pass filter to inertial navigation system (INS) data processing. A set of INS heading data of a practical example has been calculated and the filtering tested. This filtering ... -
Evaluation Procedure for Coordinate Transformation
(American Society of Civil Engineers, 2005)With the use of the global positioning system, World Geodetic System 1984 (WGS84) [or The International Terrestrial Reference Frame (ITRF)] has been widely accepted as a global geodetic reference system and adopted by many ... -
Computing Pit Excavation Volume
(American Society of Civil Engineers, 2005)The estimation of borrow pit volumes is common in many surveying and highway applications. The trapezoidal method (rectangular or triangular prisms), classical cross sectioning (trapezoidal, Simpson, and average formula), ... -
Estimation of Total Electron Content Using Single Frequency Weighted Observations for Esfahan Province
(American Society of Civil Engineers, 2005)One of the major error sources in the global positioning system (GPS) is ionospheric delay (refraction). This delay is frequency dependent and therefore can be removed by dual frequency receivers. Using eight coefficients ... -
Evaluation and Improvement of Geopositioning Accuracy of IKONOS Stereo Imagery
(American Society of Civil Engineers, 2005)IKONOS imagery has been used in many commercial, government, and research applications ranging from environment monitoring, to coastal change detection, and to national security. The high costs of IKONOS high end products ... -
Automatic Plotting of Architectural Facades with Multispectral Images
(American Society of Civil Engineers, 2005)This paper describes an automatic approach in architectural photogrammetry for the documentation and analysis of historic facades. Multispectral close-range images were taken and evaluated for identification of masonry ... -
Single- and Multiepoch Analyses of Global Positioning System Baseline Network: Application to Coordinate and Velocity Determinations in Central Taiwan
(American Society of Civil Engineers, 2004)Theories and computer programs are developed for single- and multiepoch analyses of a global positioning system (GPS) baseline network using the datum-free and weighted constraint solutions. Single-epoch analysis is for ... -
Fitting Plane Curves to Three-Dimensional Points
(American Society of Civil Engineers, 2004)Fitting plane curves to the three-dimensional (3D) points defining those curves can be performed by ordinary general least squares adjustment. To this, a conformal transformation of the initial 3D system to a two-dimensional ... -
Two-Prism Surveying Probe
(American Society of Civil Engineers, 2004)The two-prism surveying probe reaches points on which it is impossible to preserve the verticality of a prism pole or the line of sight between the total station and this prism. Developed at the Centre for Research in ... -
Accuracy of Elevation Reduction Factor
(American Society of Civil Engineers, 2004)When using state plane coordinates or performing other geodetic computations, the ratio -
New Solutions to Optimum Vertical Curve Problem
(American Society of Civil Engineers, 2004)Estimating curve parameters using observed data is of fundamental importance to surveyors. In 1999 Easa converted the -
Figure Condition in Datum Transformation
(American Society of Civil Engineers, 2004)A complete datum transformation between two geodetic coordinate systems requires seven parameters: three translations, three rotations, and one scale factor. When a datum transformation is needed, these parameters, which ... -
Accuracy Assessment of Interstate Highway Length Using Digital Elevation Model
(American Society of Civil Engineers, 2004)Road length is part of the geometry of the roadway network. Its measurement is critical to all road inventory databases. One approach to obtaining it is to drive cars equipped with a distance measurement instrument (DMI) ... -
Variance Factor Estimation for Two-Step Analysis of Deformation Networks
(American Society of Civil Engineers, 2004)This paper reconsiders the two-step analysis method in an attempt to show how correct processing of both steps will ensure results identical to those obtained when using the one-step method and moreover may result in ... -
Application of Total Least Squares for Spatial Point Process Analysis
(American Society of Civil Engineers, 2004)The total-least-squares approach is a relatively new adjustment method of estimating parameters in linear models that include error in all variables. Specifically, given an overdetermined set of linear equations -
Analyzing the Impact of Integrating Pseudolite Observables into a GPS/INS System
(American Society of Civil Engineers, 2004)This paper deals with the issue of incorporating pseudolite measurements into an integrated Global Positioning System/Inertial Navigation System (GPS/INS) positioning and attitude system with a view to improving signal ...