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This invention describes a way for a drone to secure its navigation. It works by checking combinations of GPS signals it receives, comparing their unique identifications and locations against a stored database. If a combination doesn't match what's expected, or if a signal seems fake, the drone can identify it as a rogue signal and activate a security protocol. The claims specifically narrow this to GPS signals.
Why it matters: Filed when drone security was an emerging concern, the widespread proliferation of UAVs and the increased sophistication of GPS spoofing attacks since 2016 make robust on-board signal validation more critical. Embedded processing capabilities have also advanced to better handle such complex real-time analysis.
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