GPS has been in place for more than 30 years and its signals are well-known, akin to open-source software, Kassas said. Their discovery could allow the government or other agencies to use Starlink's satellites as an alternative navigation system-and possibly, a more secure one-to GPS, which powers almost all navigation systems around the world, Kassas said. Kassas said as the Starlink constellation grows, so, too, will the accuracy of his team's navigation and geo-location technique with its signals. SpaceX ultimately plans to launch more than 40,000 satellites. SpaceX has some 1,700 satellites in Earth's low orbit, meaning they circle the planet about 1,200 km from Earth's surface. Air Force to pinpoint locations of high-altitude aircraft they were able to come within 5 meters using land-based cellular signals, Kassas said. The team has also been working with the U.S.
The team has used similar techniques with other low Earth orbit satellite constellations, but with less accuracy, pinpointing locations within about 23 meters, Kassas said.
GPS, by comparison, generally identifies a device's location within 0.3 and 5 meters.
Using Starlink, they identified the antenna's location within about 7.7 meters. Then, they set up an antenna on the campus of UCI and tried to use the network to pinpoint the antenna's location. They developed an algorithm that could use the signals of multiple satellites to locate a position on Earth. Kassas is an adjunct professor of electrical and computer engineering at Ohio State and an associate professor at the University of California, Irvine.įor this research, Kassas and his research team studied the Starlink system and analyzed signals being sent by the satellites. Department of Transportation University Transportation Centers. "And even though Starlink wasn't designed for navigation purposes, we showed that it was possible to learn parts of the system well enough to use it for navigation."ĬARMEN is one of four recently awarded U.S. "We eavesdropped on the signal, and then we designed sophisticated algorithms to pinpoint our location, and we showed that it works with great accuracy," said Zak Kassas, director of the Center for Automated Vehicles Research with Multimodal Assured Navigation (CARMEN), a multi-institution transportation center housed at The Ohio State University.
The researchers did not need assistance from SpaceX to use the satellite signals, and they emphasized that they had no access to the actual data being sent through the satellites-only to information related to the satellite's location and movement. Their results will be published in the upcoming issue of the journal IEEE Transactions on Aerospace and Electronic Systems. Louis, may provide a promising alternative to GPS. 22, 2021) at the Institute of Navigation GNSS annual meeting in St. The researchers used signals from six Starlink satellites to pinpoint a location on Earth within 8 meters of accuracy. We’re an open book – so take a look at our associate offerings today, and see how PinPoint Logistics can be the right company for you! Great Opportunities & Perks for AssociatesĬompetitive starting pay, bonuses for referrals and delivery rescues, overtime opportunities, flexible schedules, full- and part-time options, recognition programs and incentives are just some of the benefits of working with PinPoint Logistics.The Starlink satellites, sent into orbit by Elon Musk's SpaceX, are designed to provide broadband internet connections in remote locations around the world.
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