Now showing items 901-920 of 1023

    • Development of a GPS Active Control Point Station 

      See Hean Quek; M. Craymer; R. B. Langley; D. Parkhill; B. Arseneau; D. McArthur; K. Lochhead (American Society of Civil Engineers, 1989)
      The Geodetic Survey Division, Canada Centre for Surveying, has embarked on the implementation of the Active Control System, a project to establish a nationwide network of automated Global Positioning System (GPS) tracking ...
    • Effect of Orbital a Priori Information on Baseline Determinations 

      Kamil Eren (American Society of Civil Engineers, 1989)
      There is continuously increasing demand for very accurate baselines, especially over long distances. Such accurate baselines are required for geodynamic studies, orbit generation, and for very precise geodetic applications. ...
    • Integrated Processing of GPS and Gravity Data 

      Günter W. Hein; Alfred Leick; Steven Lambert (American Society of Civil Engineers, 1989)
      Using phase observations of the Global Positioning System (GPS) we are able to determine relative geometric three‐dimensional coordinates in the 0.1–1 ppm level. Most surveying needs, however, require orthometric heights, ...
    • Simultaneous Orbit and Network Adjustment in Tennessee 

      Yehuda Bock; Jonathan W. Ladd (American Society of Civil Engineers, 1989)
      An application of single‐session simultaneous orbit and network adjustment of GPS carrier beat phase data is described. In a simultaneous adjustment, both station positions and satellite orbit parameters are estimated from ...
    • Selection of GPS Receiver for Survey Applications 

      Ibrahim Al‐Kadi (American Society of Civil Engineers, 1989)
      The Global Positioning System (GPS) is finding a continuously increasing use for survey applications. The paper presents a quantitative rating model for the selection of a proper GPS receiver (among a number of available ...
    • Monitoring Crustal Deformation in Eastern Maine Using GPS 

      Steven R. Lambert; David A. Tyler (American Society of Civil Engineers, 1989)
      As a part of an ongoing study of crustal dynamics in New England, the University of Maine undertook a study of crustal subsidence in Eastern Maine. Previous studies have indicated a subsidence rates of the coastal region ...
    • Kinematic GPS Land Survey—Description of Operational Test and Results 

      David H. Minkel (American Society of Civil Engineers, 1989)
      A kinematic GPS (Global Positioning System) survey was performed by the National Geodetic Survey to determine the feasibility of using the method operationally on some geodetic surveying projects. The method of the experiment ...
    • Combined Photogeodesy and GPS Network 

      Leonard P. Wood (American Society of Civil Engineers, 1989)
      Manatee County, Florida is building a multipurpose LIS (land information system). To meet the mapping requirements an accurate coordinate base was required. Primary control was established and monumented at or near all ...
    • GPS Antenna Design Characteristics for High‐Precision Applications 

      James M. Tranquilla; Bruce G. Colpitts (American Society of Civil Engineers, 1989)
      Antenna characteristics required for geodetic and subcentimeter accuracy GPS (Global Positioning System) applications are discussed, including the types of measurements needed for precise antenna calibration. The antenna ...
    • GPS Surveys and Boston's Central Artery/Third Harbor Tunnel Project 

      W. J. Trevor Greening (American Society of Civil Engineers, 1988)
      Conventional surveying operations in the vicinity of Boston's Central Artery/Third Harbor Tunnel Project are hampered by large buildings, severe traffic congestion, pedestrians, and access difficulties. However, the use ...
    • A Comparisons Static and Future Kinematic GPS Surveys 

      Kevin P. Logan (American Society of Civil Engineers, 1988)
      This paper examines the techniques of relative static and relative kinematic surveying and discusses the benefits of each. Examples of applications in which both techniques could prove beneficial to the Corps surveyors, ...
    • Mini‐Mac™ Model 2816 GPS Surveyor 

      Jimmy D. Cain (American Society of Civil Engineers, 1988)
      A new portable dual‐frequency Global Positioning System (GPS) receiver is being delivered to customers by Aero Service. The MINI‐MAC Model 2816 receiver is lightweight, portable, and designed for operation by one person ...
    • GPS at Nottingham University 

      Vidal Ashkenazi; Clive de la Fuente; Terry Moore (American Society of Civil Engineers, 1988)
      The University of Nottingham has been involved with GPS (global positioning system) research since 1983 and has developed a package of computer programs capable of processing GPS data from a variety of different receivers. ...
    • Simulating Disturbances in GPS by Continuous Satellite Distribution 

      Alain Geiger (American Society of Civil Engineers, 1988)
      Rough error estimations of positioning are considerably simplified by taking continuous satellite observation distributions into account. Forming normal equations by integration allows explicit calculations of the effects ...
    • Reviewers of the Journal of Surveying Engineering 

      Unknown author (American Society of Civil Engineers, 1988)
    • Use of GPS‐Derived Coordinates in GIS Environment 

      Thomas E. Henderson; Cheryl A. Quirion (American Society of Civil Engineers, 1988)
      GIS (Geographic Information Systems) will become increasingly important for engineers and planners because of their inherent ability to provide both positional and attribute information about the land. In the past, the ...
    • GPS in Support of LIS: Project Consoil, Dane County, Wisconsin 

      David K. Krohn; Alan P. Vonderohe; David F. Mezera (American Society of Civil Engineers, 1988)
      In the fall of 1987, the National Geodetic Survey (NGS) conducted the first phase of a global positioning system (GPS) survey in Dane County, Wisconsin, in cooperation with the University of Wisconsin‐Madison, the CONSOIL ...
    • Editor's Note 

      Unknown author (American Society of Civil Engineers, 1989)
    • History of Engineering Surveying 

      William E. Kreisle (American Society of Civil Engineers, 1988)
      Vernon Parrington, Pulitzer Prize winning author of
    • Editor's Note 

      Earl F. Burkholder (American Society of Civil Engineers, 1988)