Articles in the Geodesy Category

May 2015 | No Comment

The current National Geodetic Vertical Network (NGVN) in the Saudi Arabia is based mainly upon a series of leveling runs carried out during 1966 – 1970…

Feb 2015 | No Comment

VLBI plays a unique role in the practical realization and maintenance of the International Celestial Reference Frame (ICRF) and International Terrestrial Reference Frame (ITRF), it is also the only technique which provides the full set of Earth Orientation Parameters (EOP)[1]…

Feb 2015 | No Comment

Reference systems are used in Geodesy, Astronomy and Spatial information science extensively. In addition to well established systems like ICRF, MOD, TOD, and WGS84, various other systems are available that arise from intermediate or approximate transformations [6]…

Jan 2015 | No Comment

Geospatial Information Authority of Japan (GSI) has developed and operated nationwide GNSS continuous observation network, GEONET, since 1996. The GSI has gradually updated system of GEONET and the upgrade has enabled GEONET to receive more and more signals…

Aug 2014 | No Comment

Courseware, which is centered on a computer, is a kind of modern teaching technology based on digital processing techniques and audio-visual technology. Courseware can store, transmit, process, convert and search teaching materials by integrating a variety of media information such as words, voice and images and so on, according to teachers’ teaching design[1-3]. Courseware is able to improve the effect of teaching because…

Apr 2014 | No Comment

The Corona program was a series of American strategic reconnaissance satellites produced and operated by the Central Intelligence Agency Directorate of Science & Technology with substantial assistance from the U.S. Air Force. The Corona satellites were used for photographic…

Apr 2014 | No Comment

Positioning with GPS can be categorized into two broad groups: absolute (single point positioning) and relative (or differential) positioning….

Feb 2014 | No Comment

Continuously Operating Reference Stations (CORS) networks have been utilized for the last two decades in most developed and some developing countries by surveyors, geomatics and earth scientists and engineers. They handle Global Navigation Satellite System (GNSS) data which support three dimensional positioning not only

Jan 2014 | No Comment

China has invested enormous effort in manned space engineering. The Tiangong-1 and Shenzhou-8 have been launched, twice rendezvouses have been accomplished successfully. In order to meet the requirements of the manned space engineering on the TT&C network, and prepare for our country’s space station construction

Nov 2013 | No Comment

The Survey of India (SoI) is the pioneer surveying and mapping agency for India. The organisation conducts surveys at regular intervals and generates classified and nonclassified topographic map sheets using a polyconic system of projection. Modern applications are now demanding maps at higher scales and precision.