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In this paper, we propose an initial alignment method for marine strap-down inertial navigation system (SINS) based on transformed cubature Kalman filter (TCKF) under large heading misalignment angle condition, which can alleviate the non-local sampling problem inherent in existing initial alignment method based on cubature Kalman filter (CKF). As can be seen from our simulation results, TCKF outperforms...
As a nonlinear filtering method, fifth degree Cubature Kalman Filter (5th-CKF) has attracted much attention due to its high precision as compared with that of third-degree Cubature Kalman Filter (3rd-CKF). This paper presents initial alignment method of strap-down inertial navigation system (SINS) by applying both the 3rd-CKF and 5th-CKF. Simulation results show that the 3rd-CKF has similar performance...
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