›› 2012, Vol. 32 ›› Issue (1): 21-26.doi: 10.3780/j.issn.1000-758X.2012.01.004

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Multi-level Multi-sensor Integrated Navigation System Without Feedback

 LIN  Xue-Yuan   

  1. (NavalAeronauticalandAstronauticalUniversity,Yantai264001)
  • Received:2011-03-15 Revised:2012-02-25 Online:2012-02-25 Published:2012-02-25

Abstract: The centralized, distributed and combined information fusion methods are usually used by the traditional multi-sensor integrated navigation system, butthe multi-level information algorithm is the upgrade of the above methods, and can fulfill the fusion at the high grade space. Thus, the multi-levelinformation fusion method of the multi-sensor integrated navigation system without feedback information was studied, and then the theoretical analysisshows that this method is equivalent to the federated Kalman filter algorithm without feedback information. Finally, the SINS/GPS/SST/altimeter was usedto simulate and verify the above methods.

Key words: Federated Kalman filter, Multi-level fusion, Fusion algorithm, Integrated navigation system