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  "path": "/news/2026-03-ultralightweight-sonar-ai-tiny-drones.html",
  "publishedAt": "2026-03-30T12:00:08.000Z",
  "site": "https://techxplore.com",
  "tags": [
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  "textContent": "To help small aerial robots navigate in the dark and other low-visibility environments, my colleagues and I developed an ultrasound-based perception system inspired by bat echolocation.",
  "title": "Ultralightweight sonar plus AI lets tiny drones navigate like bats"
}