GPS and Inertial Navigation
June 26, 2009 by airianto
Filed under GNSS, GPS, Geomatics Science
GPS/INS direct georeferencing
GPS aided inertial navigation systems have been available for commercial mapping applications for approximately a decade, pioneered by Canadian-based Applanix Corporation with their Read more
GPS
GPS Satellite
The Global Positioning System (GPS) is a space-based radio-navigation system consisting of a constellation of satellites and a network of ground stations used for monitoring and control. A minimum of 24 GPS satellites orbit the Earth at an altitude of approximately Read more
Low Latitude Troposphere: A Preliminary Study Using GPS CORS Data in South East Asia
January 1, 2009 by airianto
Filed under GPS, Geomatics Science
Hot and wet conditions in the equatorial or low latitude region degrade satellite positioning accuracy noticeably. The degradation is related to the strong tropospheric effect, especially the wet component which is approximately proportional to the content of water vapor in the troposphere and thus makes satellite positioning more challenging in this region.
Despite the efforts to achieve better understanding of the signal delay in the low latitude troposphere, much more still remains to be improved.
Galileo
March 16, 2008 by airianto
Filed under GNSS, Galileo, Geomatics Science
Galileo Satellite
Galileo will be Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It will be inter-operable with GPS and GLONASS, the two other global satellite navigation systems.
A user will be able to take a position with the same receiver from any of the satellites in any combination. By offering dual frequencies as standard, however, Galileo will deliver real-time positioning accuracy down to the metre range, which is unprecedented for a publicly available system. Read more
Geomatics
January 2, 2008 by airianto
Filed under General, Geomatics Science
Geomatics is the discipline of gathering, storing, processing, and delivery of geographic information, or spatially referenced information.
Overview
Geomatics is fairly new, the term was apparently coined by Read more
