Title:
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Land-vehicle mems INS/GPS positioning during GPS signal blockage periods |
Author:
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T., D. Tan; L., M.Ha; N., T. Long; N., D. Duc; N., P. Thuy
|
Abstract:
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The demand of vehicle navigation and guidance has been urgent for many years. The
idea of integrating multisensor navigation systems was implemented. The most efficient
multisensor configuration is the system integrating an inertial navigation system (INS) consisting
of MEMS based micro sensors and a global positioning system (GPS). In such system, the GPS is
used for providing position and velocity whereas the INS for providing orientation. The estimation
of the system errors is performed by a Kalman filter (KF). A serious problem occurs in the
INS/GPS system application that is caused by the accidental GPS signal blockages. In this paper,
the main objective is to improve the accuracy of the obtained navigation parameters during periods
of GPS signal outages using different methods. The overall performance of the system have been
analyzed by experimentation data; and results show that these methods indeed improve the quality
of the navigation and guidance systems. |
Description:
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VNU Journal of Science, Mathematics - Physics. Vol. 23 (2007), No 4, P. 243-251 |
URI:
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http://hdl.handle.net/123456789/1090
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Date:
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2007 |