shoran
/ˈʃɔræn/
noun
- A system of short-range radio navigation that determines the position of an aircraft or ship by measuring the time it takes for signals to travel to two fixed ground stations and back.
- Shoran was an important early navigation tool before GPS became widely available.
- The pilot used shoran to guide the plane safely through the fog.
- During the survey, the team relied on shoran for precise positioning over the ocean.