Before revision: The Carousel IV system derives its name from the fact that the inertial reference platform was rotated 180 ° every 60 seconds as a technique to reduce drift and increase accuracy by countering systematic errors.
After revision: The Carousel IV system derives its name from the fact that the inertial reference platform was rotated 360 ° every 60 seconds as a technique to reduce drift and increase accuracy by countering systematic errors.