Finnish company Koherent has started selling precise local positioning systems without the use of satellite navigation in the Nordic countries, Yle reported on June 18.
Local positioning systems are typically significantly more accurate than satellite GPS. On the other hand, they always require the installation of various devices. Local positioning networks may be used more widely if interference with GPS signals becomes an ongoing problem.
Currently, local positioning systems based on various technologies are already used, for example in airports and shopping centers. They are more accurate than GPS systems that use satellite signals, but require the installation of several devices. These systems can be based, for example, on Wi-Fi, Bluetooth, UWB, millimeter waves 5G or even the Earth’s magnetic field. They are especially useful when there is interference with GPS navigation signals.
Koherent has developed a positioning system based on radio interferometry. Since it does not use satellites, it is not affected by GPS interference. Kari Leppänen, CEO of Koherent, says the technology is very precise.
“This technology is 10 to 100 times more accurate than the best radio positioning technologies, and is the only technology we know of that can reliably determine location to within a centimeter, both indoors and outdoors.”Leppänen said.
According to Leppänen, in the absence of obstacles, the system can achieve good precision up to a maximum distance, which is currently 200 meters. In the future it is planned to increase this distance to one kilometer. The company is starting to sell the system to the Nordic countries.
Source: Rossa Primavera
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