Advances in Positioning and Reference Frames: IAG Scientific Assembly Rio de Janeiro, Brazil, September 3–9, 1997: International Association of Geodesy Symposia, cartea 118

Session 1: Maintenance and Densification of Reference Frames.- WGS 84 — Past, Present and Future.- ITRF Densification and Continuous Realization by the IGS.- The Use of the EUREF Permanent GPS Network for the Maintenance of the European Terrestrial Reference Frame.- The European Vertical GPS Reference Network Campaign 1997 — Concept and Status.- From UELN-95 to EVS 2000 — European Activities for a Continental Vertical Datum.- Global GPS Networks and the Determination of Earth Rotation Parameters.- Realization of the ITRF-94 in Thailand and Malaysia by Use of a Combined Network for Geodynamics and National Survey.- The ITRF96 Realization of the International Terrestrial Reference System (Abstract).- Modernizing the Reference Framework for Canada’s Maritime Provinces.- Permanent GPS Tracking Network including the Mediterranean Area.- Session 2: GPS Reference Networks.- The Brazilian Network for Continuous Monitoring of GPS (RBMC): Operation and Products.- Towards an Austrian GPS Reference Network.- Real-Time Differential GPS Error Modelling in Regional Reference Station Networks.- Processing Strategies for Regional GPS Networks.- A Continental Wide Area Differential GPS Strategy.- Possibility of a Dynamic Cadastre for a Dynamic Nation.- Preliminary Stability Test for the Regional GPS Tracking Stations in Taiwan.- The Use of Heuristics in the Design of GPS Networks.- Transformations of GPS Coordinates and Heights in Trinidad.- Vectors Connecting the Geodetic Points at Metsähovi and Sjökulla.- Use of the Finnish Permanent GPS Network (FinnNet) in Regional GPS Campaigns.- The New Swiss National Height System LHN95.- The Non-Fiducial Approach Applied to GPS Networks.- The Statefix West Australian GPS Network.- POLREF-96 — The New Geodetic Reference Frame forPoland.- Session 3: SIRGAS Project.- An Overview of the SIRGAS Project (Abstract).- The Definition and Realization of the Reference System in the SIRGAS Project.- Time Evolution of the SIRGAS Reference Frame.- Results of the SIRGAS 95 GPS Network Processing at DGFI/I.- The Integration of Brazilian Geodetic Network into SIRGAS.- Adjustment of the New Venezuelan National GPS Network within the SIRGAS Reference Frame.- Realization of a Geocentric Reference System in Argentina in Connection with SIRGAS.- Some Considerations Related to the New Realization of SAD-69 in Brazil.- The IGS Regional Network Associate Analysis Center for South America at DGFI/I.- The Redefinition of the Geodetic Reference System of Uruguay into SIRGAS Frame.- Session 4: Current Developments in Precise GPS Positioning.- GPS Ambiguity Resolution for Navigation, Rapid Static Surveying, and Regional Networks.- GPS Antenna and Site Effects.- Precise GPS Positioning Improvements by Reducing Antenna and Site Dependent Effects.- IGS Orbit, Clock and EOP Combined Products: An Update.- The Use of GPS for Monitoring of the Ionospheric Disturbances.- An Integrated GPS Monitoring System for Site Investigation of Nuclear Waste Disposal.- Determination of Stochastic Models of GPS Baselines in GPS Network Adjustment.- The Assisi Landslide GPS Network.- Use of a Regional Ionospheric Model in GPS Geodetic Applications.- Instantaneous Ambiguity Resolution for Medium-Range GPS Kinematic Positioning Using Multiple Reference Stations.- Exploiting the SIRGAS Colocations for Determining Elevation Dependent Phase Center Variations of Geodetic GPS Antennas.- Real-Time Failure Detection and Repair in Ionospheric Delay Estimation Using GPS by Robust and Conventional Kalman Filter State Estimates.- GPS Levelling Results fromTwo Test Areas in Finland.- Quality Control Algorithms for Permanent GPS Receiver Applications.- Fast Ambiguity Resolution in Network Mode.- Session 5: GPS Kinematic Applications.- High Precision GPS Kinematic Positioning: Progress and Outlook.- Kinematic Positioning Using Adaptive Filters and Multiple DGPS Receiver Configurations.- Estimating the Residual Tropospheric Delay for Airborne Differential GPS Positioning.- High-Accuracy Airborne Integrated Mapping System.- Airborne GPS Performance during a Photogrammetric Project.- Signal Distortion in High Precision GPS Surveys (Abstract).- Testing GPS Approaches for Civil Aviation in the Swiss Alps.- Static and Kinematic Positioning with GPS for the Construction and Maintenance of High Speed Railway Lines.- Kinematic GPS for Ice Sheet Surveys in Greenland.- A Reweighted Filtering Algorithm and its Application to Open Pit Deformation Monitoring.- Permanent Automatic GPS Deformation Monitoring Systems: A Review of System Architecture and Data Processing Strategies.- Modified GPS-OTF Algorithms for Bridge Monitoring: Application to the Pierre-Laporte Suspension Bridge in Quebec City.- The GPS Component of the Project for Digital Mapping of the KARST Aquifer System Near Curitiba, Brazil (Abstract).- Kinematic GPS Positioning with Adaptive Kalman Filtering Techniques.

Most recent advances in positioning Papers from members of the geodetic association