TY - GEN
T1 - Research of Fuzzy Inference based on Simplified UKF for large alignment errors in SINS alignment on a swaying base
AU - Yang, Weiwei
AU - Miao, Lingjuan
AU - Guo, Ze
PY - 2012
Y1 - 2012
N2 - In the condition of large alignment angles which brought about nonlinear problem in SINS, a precise SINS error model was established on the concept of Euler platform error angles. To reduce the computation of initial alignment in SINS, a Simplified UKF (SUKF) could be used since its state equation was nonlinear while the measurement equation was linear. A novel method combined Fuzzy Inference System (FIS) and system noise's online estimation together on the basis of SUKF was proposed to adjust the system noise covariance, and online improve the performance of the SINS initial alignment. In the SINS alignment for large misalignment angles simulation conditions, the SUKF via FIS showed higher accuracy, better stability and also better real-time performance compared with conventional UKF.
AB - In the condition of large alignment angles which brought about nonlinear problem in SINS, a precise SINS error model was established on the concept of Euler platform error angles. To reduce the computation of initial alignment in SINS, a Simplified UKF (SUKF) could be used since its state equation was nonlinear while the measurement equation was linear. A novel method combined Fuzzy Inference System (FIS) and system noise's online estimation together on the basis of SUKF was proposed to adjust the system noise covariance, and online improve the performance of the SINS initial alignment. In the SINS alignment for large misalignment angles simulation conditions, the SUKF via FIS showed higher accuracy, better stability and also better real-time performance compared with conventional UKF.
UR - http://www.scopus.com/inward/record.url?scp=84874603299&partnerID=8YFLogxK
U2 - 10.1109/ICACI.2012.6463222
DO - 10.1109/ICACI.2012.6463222
M3 - Conference contribution
AN - SCOPUS:84874603299
SN - 9781467317436
T3 - 2012 IEEE 5th International Conference on Advanced Computational Intelligence, ICACI 2012
SP - 539
EP - 544
BT - 2012 IEEE 5th International Conference on Advanced Computational Intelligence, ICACI 2012
T2 - 2012 IEEE 5th International Conference on Advanced Computational Intelligence, ICACI 2012
Y2 - 18 October 2012 through 20 October 2012
ER -