SLCORSnet

Welcome to Sri Lanka Continuously Operating Reference Station Network

slcorsnet@survey.gov.lk

Don’t hesitate and write us. This is the general email.

+94 11 236 9011

We are available for questions and estimates.

Department of Survey

150, Kirula Road,
Colombo 00500, Sri Lanka

Accurate and Precise Land Surveying Services with the Highest Quality.

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.

Flächen 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.

SLCORSnet Coverage

Currently it is the Western province and the surrounding areas as it is the phase one. Once completed, the network will cover the entire island and the nearby sea for any hydrographic surveys.

SLCORSnet

Our Purpose and Structure

Projects
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Years of Experience
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Happy Clients
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Quality Certificates
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34 years of successful land surveying and mapping projects in the greater Boise County region.
John Dahlio
Founder & CEO

SLCORSnet

Who will be benefiting from it?

Anyone who needs real-time cm level GNSS positioning. In general, industry sectors are land survey, construction, sewage, water supply, utilities, transportation, structural monitoring services, disaster management, disaster prevention and monitoring, logistics,  and any sector that requires high accuracy GNSS positioning.

Avoids the use of a local GNSS base station for real time corrections

Also provides coverage over ocean belt closer to the coast for hydrographic surveys

Fast, accurate and reliable

Exended range and coverage than a localized system

Everything above leads to significantly lower investment on hardware from user side, less time being spent on the field, less hardware to carry around , increased efficiency, productivity and finally profitability.

Avoids base stations being setup on known points for control surveys due to the availability of RINEX raw data online delivery and online post processing services.

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