1.Aiming at the characteristics of RLG strapdown inertial navigation system,the performances of Kalman filter,analytic gyrocompassing and indirect estimation are analyzed in theory.
1.OceanGate's Titan submersible carries a state-of-the-art self-contained inertial navigation system which it combines with an acoustic sensor known as a Doppler Velocity Log to estimate the depth and speed of the vehicle relative to the sea floor.