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inertial navigation

inertial navigation

1 8.3
A way to find position and speed using motion sensors without external signals
  • noun
  • /ɪˈnɜrʃəl ˌnævɪˈɡeɪʃən/
  • Specialized
translation icon : navegación inercial
  • The defense against GPS hacking is inertial navigation systems, aka INS.
  • inertial navigation system

Examples

  • I obtained a complete list of subsequent engine firings, which, even without the record sent back from the Fafner's inertial navigation system, would allow us to pinpoint the ship's last known location.

    Fiction book (1999)
  • Switch to inertial navigation.

  • Gyroscope sensors are at the core of inertial navigation units that guide mechanical systems such as aircraft, sea vessels, and cruise missiles.

    Academic text (1994)
  • Gyros of any type, designed for use in inertial navigation systems or in guidance systems of all types, specified to function at acceleration levels greater than 100 g.

    Blog text (21)
  • With this system, the B-2 could have the engine started, the inertial navigation system aligned, and the plane taxiing for takeoff in less than three minutes, without any external power carts or crew chiefs standing by.

    Fiction book (1991)
  • The aircraft used inertial navigation to determine its position during the flight, ensuring accuracy without relying on external signals.

  • Missiles equipped with inertial navigation systems can travel long distances while maintaining precise trajectories.

  • Systems utilizing inertial navigation, which rely on sensors to track movement, are essential for modern spacecraft during their missions.

Synonyms

inertial navigation system
vsinertial navigation
  • Specialized
1 7.2

A machine that uses its own sensors to find a moving object's position and speed without outside signals

is the abstract method rather than the physical equipment
inertial guidance system
vsinertial navigation
  • Specialized
7.2

A device that finds and controls a plane or spacecraft position using movement sensors instead of outside signals

focuses on finding position and velocity rather than controlling movement
inertial guidance
vsinertial navigation
  • Specialized
8.3

A method to find and keep direction using instruments that measure movement and turning without outside signals

focuses on determining position and speed instead of steering movement

How Autonomous

inertial navigation
  • Specialized
1 8.3
dead reckoning
  • Specialized
1 8.1
celestial navigation
  • Specialized
1 7.7
GPS
  • Specialized
205 2.6
radio compass
  • Specialized
6.5

Surface Forms

Morphology

inertial + navigation

The compound simply combines 'inertial' (pertaining to inertia) with 'navigation' (planning/controlling movement), so its core meaning — navigation based on inertial principles or measurements — is directly derivable from the parts. Although it is a technical term with extra technical details (sensors, velocity/position estimation), the compositional logic is clear and predictable for a learner who knows both constituents.

Etymology

Inertial navigation is named for a simple image: a device that 'feels' pushes and turns, where inertial is about feeling motion and navigation is about finding the way. Imagine it counting every push and turn so it always knows where it is without outside signals, which is why the term means 'finding position by measuring motion inside the vehicle'.