Communications of the ACM
New Project to Boost Sat Nav Positioning Accuracy Anywhere in the World
The University of Nottingham in the U.K. will participate in a four-year project to integrate different satellite systems to deliver instant, centimeter-level positioning anywhere on Earth.
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The University of Nottingham in the U.K. will participate in a four-year project using Global Navigation Satellite Systems (GNSS) to establish an architecture for the world's most accurate real-time positioning service.
The TREASURE initiative will integrate different satellite systems into a combined operation to deliver instant, centimeter-level positioning anywhere on Earth.
Mitigating atmospheric effects will be a key aspect of the project, which plans to develop new error models, positioning algorithms, and data assimilation methods to monitor, anticipate, and correct not only these effects but also signal degradation caused by man-made interference.
Reliable positioning solutions will be produced via signal processing techniques to enhance the quality of the measurements.
The researchers also will devise new multi-GNSS orbit and clock products for use with Galileo, the new European GNSS system.
The team will concentrate on two existing GNSS methods: Precise Point Positioning (PPP) and Network Real Time Kinematic (NRTK). NRTK employs fixed reference stations running GNSS receivers at carefully surveyed reference sites to obtain accurate GNSS positioning data, and essential to it is the transmission of corrections from those sites to users. PPP uses external data via satellite clocks and orbit products, and one of TREASURE's goals is providing accurate predictions of atmospheric conditions.
From University of Nottingham (United Kingdom)
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