Vehicle Kinematic State Estimation Using Passive Sensor Fusion Approach

Li Wei Fong; Pi Ching Lou; Ke Jia Tang

doi:10.4028/www.scientific.net/AMM.271-272.1709

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 271-272Vehicle Kinematic State Estimation Using Passive...

Vehicle Kinematic State Estimation Using Passive Sensor Fusion Approach

Abstract:

The main issue addressed here is that of estimating the kinematic state components of a vehicle in autonomous navigation using landmark angle-only measurements from an onboard passive sensor. The estimates of the absolute position and velocity of the vehicle are provided by a hybrid coordinate fusion filter. The hierarchical architecture of the filter which consists of a group of local processors and a global processor is developed for improving estimation accuracy. In each local processor, an extended Kalman filter uses hybrid information from the reference Cartesian coordinate system and the modified polar coordinate system for state and state error covariance extrapolation and updating. In the global processor, a weighted least squares estimator is utilized to combine the outputs of local processors to form a global estimate. By using only two landmarks simulation results show that proposed algorithm improves the estimation accuracy drastically.

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Periodical:

Applied Mechanics and Materials (Volumes 271-272)

Pages:

1709-1712

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.271-272.1709

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Online since:

December 2012

Authors:

Li Wei Fong, Pi Ching Lou, Ke Jia Tang

Keywords:

Hybrid Coordinate Fusion Filter, Landmark Angle-Only Measurements, On-Board Passive Sensor

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