About
SLCORSnet
Sri Lanka Continuously Operating Reference Station Network
The SLCORSnet comprises of physical GNSS reference stations at remote designated locations that transmit the collected GNSS raw data live to the Control Centre based in Colombo at the Survey Generals Office. This raw data is processed using a GNSS network processing software housed at the Control Centre which then will be transmitted to the users in the field over the internet based on their geographic location in the form of RTCM corrections.
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Online delivery of RINEX raw data and online post-processing services are provided as real-time web services from the SLCORSnet. Once, registered under SLCORSnet and once you have purchased these services, you are allowed to use these services freely during the subscription period.
Stations
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Years in Service
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Happy Clients
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Stations Yet to Come
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Virtual Reference Station (VRS)
VRS creates a virtual reference station near the rover’s position using a network of reference stations. It reduces the baseline distance to minimize spatially correlated errors, providing precise real-time kinematic positioning by interpolating errors from network models.
Pseudo Reference Station (PRS)
PRS places the virtual reference station at a fixed distance from the rover. It operates similarly to VRS but is tailored for older rovers not designed for GNSS networks, allowing them to compute corrections effectively using their RTK algorithms.
Flรคchen Korrektur Parameter (FKP)
FKP transmits a model of distance-dependent errors to the rover. The rover uses this model to compute individualized corrections, providing more detailed error data than VRS. It allows the rover to use its own algorithms for better RTK computation.
Master Auxiliary Concept (MAC)
MAC uses phase correction differences from a master station and multiple auxiliary stations. The rover receives coordinate and correction differences, computes individualized corrections, and handles adjustments. It offers higher redundancy and accuracy but requires more bandwidth and processing resources.
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