SSP'05 -- Proceedings

	IEEE/SP 13th workshop on Statistical Signal Processing July, 17-20, 2005 - Bordeaux - France

Information regarding the paper

Title

A Particle filter to mitigate Jamming for GPS navigation

Author(s)

Audrey Giremus	IRIT/SUPAERO
Jean-Yves Tourneret	IRIT/ENSEEIHT
Arnaud Doucet	University of Cambridge

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Abstract

This paper studies a deterministic Particle Filter for detecting and estimating jamming for GPS navigation. Jamming results in an sudden increase of the GPS measurement noise variance, hence a degradation of the positioning solution. The proposed methodology extends the state vector by including both the unknown noise variances and a latent process indicating variance jumps. A fixed lag smoothing algorithm makes the detection more robust to outliers. The sparseness of variance changes is advantageously taken into account in the proposed strategy.