Markovian Channel Modeling for Multipath Mitigation in Navigation Receivers

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 5Language: englishTyp: PDF

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Krach, Bernhard (Institute of Communications and Navigation, German Aerospace Center (DLR), Oberpfaffenhofen, Germany)
Weigel, Robert (Chair for Electronics Engineering, University of Erlangen-Nuremberg, Erlangen, Germany)

Multipath is today still one of the most crucial problems in satellite navigation, in particular in urban environments, where the received navigation signals can be affected by blockage, shadowing and multipath reception. Latest multipath mitigation algorithms are based on the concept of sequential Bayesian estimation and improve the receiver performance by exploiting the temporal constraints of the channel dynamics, which have to be characterized by a first-order Markovian model for this purpose. In this paper such a channel model is introduced. Simulation results show the benefit of the novel model.