Imperial College London
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Professor Washington Yotto Ochieng, EBS, FREng

Faculty of Engineering, Department of Civil and Environmental Engineering

Head of Department of Civil and Environmental Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6104w.ochieng Website

 
 
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Assistant

 

Ms Maya Mistry +44 (0)20 7594 6100

 
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Location

 

441/442Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Bhatti:2007:10.1017/S0373463307004237,
author = {Bhatti, UI and Ochieng, WY},
doi = {10.1017/S0373463307004237},
journal = {Journal of Navigation},
pages = {327--348},
title = {Failure modes and models for integrated GPS/INS systems},
url = {http://dx.doi.org/10.1017/S0373463307004237},
volume = {60},
year = {2007}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - GPS is the most widely used global navigation satellite system. By design, there is no provision for real time integrity information within the Standard Positioning Service (SPS). However, in safety critical sectors like aviation, stringent integrity performance requirements must be met. This can be achieved externally or at the receiver level through receiver autonomous integrity monitoring (RAIM). The latter is a cost effective method that relies on data consistency, and therefore requires redundant measurements. An external aid to provide this redundancy can be in the form of an Inertial Navigation System (INS). This should enable continued performance even during RAIM holes (when no redundant satellite measurements are available). However, due to the inclusion of an additional system and the coupling mechanism, integrity issues become more challenging. To develop an effective integrity monitoring capability, a good understanding of the potential failure modes of the integrated system is vital. In this paper potential failure modes of integrated GPS/INS systems are identified. This is followed by the specification of corresponding models that would be required to investigate the capability of existing integrity algorithms and to develop enhancements or new algorithms. © The Royal Institute of Navigation.
AU  - Bhatti,UI
AU  - Ochieng,WY
DO  - 10.1017/S0373463307004237
EP  - 348
PY  - 2007///
SN  - 0373-4633
SP  - 327
TI  - Failure modes and models for integrated GPS/INS systems
T2  - Journal of Navigation
UR  - http://dx.doi.org/10.1017/S0373463307004237
VL  - 60
ER  -
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