The use of GPS for survey in urban environment and more generally in presence of numerous obstacle, is still a challenging problem. In this situations an accurate planning is mandatory, but the traditional planning tools can only offer a partial solution. It happens sometimes that, especially for kinematics survey, the proper satellite visibility can be only verified after the campaign. A new planning software has been developed, based on a procedure that takes as input a DHM (or a model of buildings) and almanac data. The procedure has been successfully tested in two different zones of the town of Trento, to compare GPS and GPS+GLONASS systems possibly in real time.
La pianificazione di rilievi GPS/GLONASS in ambienti densamente urbanizzati
SGUERSO, DOMENICO
2000-01-01
Abstract
The use of GPS for survey in urban environment and more generally in presence of numerous obstacle, is still a challenging problem. In this situations an accurate planning is mandatory, but the traditional planning tools can only offer a partial solution. It happens sometimes that, especially for kinematics survey, the proper satellite visibility can be only verified after the campaign. A new planning software has been developed, based on a procedure that takes as input a DHM (or a model of buildings) and almanac data. The procedure has been successfully tested in two different zones of the town of Trento, to compare GPS and GPS+GLONASS systems possibly in real time.
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