INS
n. countablen. Stands for Inertial Navigation System. A computer system that helps a plane or ship find its way without using outside signals like GPS. It uses sensors to track every movement and turn to calculate exactly where it is.
n. Abbreviation for Inertial Navigation System. A self-contained navigation system that tracks the position and orientation of a vehicle by measuring accelerations and rotations. It operates independently of external signals such as radio or satellite data.
The pilot checked the INS before the long flight.
Because the submarine was deep underwater where GPS signals cannot reach, it relied entirely on its INS for navigation.
Modern aircraft typically integrate INS data with satellite positioning to provide a continuous and highly accurate navigation solution even if external signals are temporarily jammed or lost.
Usually used as an acronym for Inertial Navigation System; often preceded by the definite article 'the'.