High Resolution Multipath Mitigation Technique Based on the Teager-Kaiser Operator for GNSS Signals

David de Castro and Jose Diez, and Antonio Fernandez

Abstract:	In this paper, a TK-operator-based method is presented to track the Galileo system's BOC(1,1) signal in multipath scenarios. Our technique tries to improve the performance of the delay estimation when a limited number of correlators is available, which is the case of low-cost mass-market receivers. The TK is a non-linear operator that was first proposed to obtain the energy of a physical process, but has been used recently in the signal processing field. The proposed algorithm was implemented in the GRANADA Bit-true Simulator to have its performance tested in a multipath scenario. The GRANADA simulator is a flexible tool developed by DEIMOS Space that allows the simulation of the whole Galileo chain from transmitter to the receiver, permitting the user to change whatever he wants to include new techniques in the receiver. The simulation results show how the proposed algorithm outperforms the classical Narrow Correlator for the test scenario, with a comparable complexity in terms of correlators.
Published in:	Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007) September 25 - 28, 2007 Fort Worth Convention Center Fort Worth, TX
Pages:	1677 - 1682
Cite this article:	de Castro, David, Diez, Jose, Fernandez, Antonio, "High Resolution Multipath Mitigation Technique Based on the Teager-Kaiser Operator for GNSS Signals," Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), Fort Worth, TX, September 2007, pp. 1677-1682.
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