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Creation of geodetic satellite network
Methods and technologies of geodetic satellite survey based on GNSS methods are widely used for creation of reference geodetic networks, field aerial survey control point referencing , on-board positioning of aerial imagery photos perspective centres, field topographic survey, land management and cadastre works, monitoring of critical objects.
In the modern world geodetic base network is usually created with the use of global navigation satellite systems (GNSS) GLONASS/GPS principally basically by application of a differential method. The differential method is most efficient where there is a network of reference (base) stations with specified geodetic coordinates. Application of the differential method provides for spatial objects’ coordinate setting of +/-2 cm accuracy in real time and +/-5 cm in post-processing.
Reference station |
Plan of reference stations’ allocation |
Satellite geodetic network consisting of reference stations can be used for solution of the following tasks:
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GNSS technology for monitoring of critical objects
The GLONASS/GPS technology is successfully applied for monitoring of critical objects.
Purpose of the monitoring: safety and reliability control of an object’s operation.
Specific feature of the technology: monitoring is always performed in real time, which provides for operative diagnosis of work of all critical object’s systems.
Monitoring system scheme illustrated by a hydropower station:
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1. Referential stations
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