Britain’s railway has taken a major step in the development of quantum navigation technologies, with new systems designed to measure train position with extreme precision now being advanced for the national rail network.
Quantum inertial navigation uses ultra-sensitive sensors capable of detecting minute changes in motion and rotation. Unlike satellite-based navigation systems such as GPS, it does not rely on external signals, meaning it could provide highly resilient positioning even in environments where satellite signals are unavailable, including tunnels, dense infrastructure or areas affected by interference.
The technology is being developed as a potential future alternative to fixed trackside positioning infrastructure, which can be costly to install and maintain and are vulnerable to environmental disruption or equipment failures. Once developed, quantum will enable a lower cost, more reliable, more resilient system.
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