1982•The Journal of Japan Institute of NavigationOpen access

The Evaluation of the Omega/Dead Reckoning Hybrid Navigation by Means of the On-board Data

H. Yabuki, Shinji Abe, Eiichi TANAKA, S. Nishi

Abstract

The Navy Navigation Satellite System has global coverage and high position fix accuracy but has restricted user time. Previously, we had proposed the Omega/Dead Reckoning hybrid navigation system in order to back up the NNSS navigation. This time, we evaluated the accuracies of the above hybrid navigation system by means of on-board data. Results of the evaluation show that 50% improvement in accuracy (RMS value) is attained with the proposed navigation system, compared with Omega navigation. Furthermore, in this hybrid navigation system, the fixed error of the Omega navigation occured by the Lane Slip and incorrectness of the PPC tables is mostly compensated. These results show that this hybrid navigation system is useful to back up the NNSS navigation.

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Key concepts: Dead reckoning, Navigation system, Air navigation, Celestial navigation, Satellite navigation, Computer science, Satellite system, Inertial navigation system