Swift Navigation aims for pinpoint GPS to guide autonomous cars

Most GPS receivers are accurate within a 5- to 15-foot radius – the size of an above-ground swimming pool. That’s enough to find the nearest Safeway or Starbucks, but would be a disaster for self-driving cars or drones. To address that market, San Francisco’s Swift Navigation is developing GPS receivers that are accurate within less than an inch – the diameter of a quarter.

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