Off-shore seismic exploration navigation and positioning algorithm based on Kalman filtering
Yi Chang-hua1,2, Fang Shou-chuan1,2, Cao Guo-fa2
1. School of Geodesy and Geomatics,Wuhan University,Wuhan City,Hubei Province,430079,China;
2. BGP Inc.of CNPC,Zhuozhou City,Hebei Province,072751,China
Abstract:With the analysis to the characteristic of the navigation system and data synchronous acquisition on off-shore exploration vessel,the application of Kalman filtering technique in establishing the math model used to describe the dynamic characteristic of the vessel was proposed in this paper.Based on the model and the output refreshment of time and position from GPS equipment,the solution of positioning network for the vessel in the next time period was predicted and then the location of the vessel and its relative relation to the designed route of seismic exploration were determined.The realistic application on the off-shore acquisition showed that the prediction results from the algorithm are very close to the results actually measured.