Research on Dynamic Inertial Estimation Technology for Deck Deformation of Large Ships

Sensors

Tianjiao Li¹  Bo Ren¹  Xiang Li² 

[1] College of Equipment Engineering, Shenyang Ligong University, Shenyang 110159, China;College of Information Science and Engineering, Shenyang Ligong University, Shenyang 110159, China;

关键词: gyro sensor;    deck deformation;    dynamic inertial estimation;    kalman filter;    wavelet;   

DOI  :  10.3390/s19194167

来源: DOAJ

【 摘 要 】

Many kinds of weapon systems and launching equipment on the deck of large ships are easily affected by deck deformation. In order to ensure the accuracy of weapon systems and the safety of taking off and landing of carrier aircraft, a dynamic estimation method combining the main inertial navigation systems (INS) and the sub-inertial navigation systems (SINS) is designed to estimate the curvature and torsion of any trajectory on the deck. Our contributions start from the fact that the area of concern extends from the fixed points to any trajectory on the deck. The dynamic filter algorithm of wavelet combined with Kalman filter is used to process the acquired data. The wavelet method is used to remove the outliers in the acquired data, and the Kalman filter effectively reduces the influence of white noise, so that the estimation accuracy is guaranteed. The simulation results clearly show that the deck deformation of large ships can be obtained accurately in real-time over the observed area which proved that this dynamic inertial measurement method is feasible in practical engineering application.

【 授权许可】

Unknown