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Current Status of Flight Evaluation of DGPS-INS Hybrid Navigation System at NAL*

Published online by Cambridge University Press:  21 October 2009

H. Shingu ,
M. Murata ,
T. Ono  and
K. Ishikawa
H. Shingu
Affiliation:
(National Aerospace Laboratory, Tokyo)
M. Murata
Affiliation:
(National Aerospace Laboratory, Tokyo)
T. Ono
Affiliation:
(National Aerospace Laboratory, Tokyo)
K. Ishikawa
Affiliation:
(National Aerospace Laboratory, Tokyo)
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Abstract

This paper presents a summary of the flight evaluation of the DGPS-INS hybrid navigation system conducted at the National Aerospace Laboratory (NAL). First, the configuration of the flight experiments, including ground facilities, the measurement system, etc. is described. Secondly, the design concept for a method of estimating navigation errors using a Kalman filter is presented. Thirdly, flight profiles employed in the experiments are defined, and the experimental results of GPS, DGPS, INS, in both stand-alone and hybrid modes are shown corresponding to each profile, and the improvement of navigation performance by the introduction of the DGPS-INS hybrid navigation system is experimentally verified. Fourthly, the future plan for research on the DGPS-INS hybrid navigation system at NAL is briefly explained. Finally, it is concluded that the design concept of the DGPS-INS hybrid navigation system available for future space vehicles has been successfully completed.

Keywords

1. Satellite navigation.2. Inertial systems.3. Integrated systems.4. Terminal area navigation.
Type
Research Article
Information
The Journal of Navigation , Volume 47 , Issue 3 , September 1994 , pp. 338 - 348
Copyright
Copyright © The Royal Institute of Navigation 1994

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References

REFERENCES

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