GPS Is Vulnerable to Attack. Magnetic Navigation Can Help
Far above your head, constellations of satellites are working constantly to provide the positioning, navigation, and timing systems that quietly run modern life. But startup SandboxAQ believes that artificial intelligence, when combined with navigation systems that read Earth’s magnetic field, known as MagNav, could mitigate these threats to GNSS. “Our technology does not replace, but can enrich existing navigation systems to improve safety and serve as an alternative primary navigation source in case of GPS outages,” says Luca Ferrara, general manager of SandboxAQ’s navigation department. Photograph: SandboxAQ SandboxAQ’s navigation technology, called AQNav, uses quantum magnetometers—devices that can detect changes in magnetic fields very precisely by measuring subatomic particles—to produce a reading of the Earth’s magnetic field. It has been tested in real flight scenarios, including two major military exercises by the US Air Force.” SandboxAQ’s team—and inspiration for the idea—originated at Google’s parent company, Alphabet, between 2016 and 2022.
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