Fibre Optic Gyroscope GNSS/INS

A fibre optic gyroscope GNSS/INS is an integrated navigation system combining fibre optic gyroscope measurement with global navigation satellite system (GNSS) and inertial navigation system (INS) enabling precise positioning and autonomous navigation during GNSS denial or RF jamming. The integrated approach provides continuous navigation capability regardless of external signal availability.

The fibre optic gyroscope GNSS/INS architecture integrates multiple complementary sensors. Fibre optic gyroscopes measure angular rotation rate enabling precise heading determination and platform attitude. Accelerometers measure linear acceleration enabling velocity and position computation. GNSS receivers provide absolute position reference correcting accumulated inertial navigation errors. Sensor fusion algorithms blend measurements optimising accuracy while minimising drift.

Operational specifications include position accuracy typically 1–10 metres depending on GNSS availability and inertial sensor quality, heading accuracy typically ±2–5 degrees enabling navigational control, and autonomous navigation capability spanning hours to days without GNSS enabling operation during denial scenarios. Real-time attitude measurement enables platform stabilisation and targeting.

Deployment applications include aircraft navigation providing dead-reckoning during radio silence, marine vessel guidance enabling precise course control and collision avoidance, autonomous vehicle operation enabling navigation through GPS-denied environments, and missile guidance providing targeting information independent of external references. Integrated architecture eliminates single-point failure vulnerability.

Environmental operation across -40°C to +85°C temperature ranges supports deployment across diverse settings. Rugged construction enables operation across mechanical stress typical of vehicle platforms.

In Pakistan, fibre optic GNSS/INS systems support military navigation and autonomous operations.

Tactical Supply Pakistan supplies fibre optic gyroscope GNSS/INS systems for autonomous navigation applications.