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Maximum likelihood estimation of position in GNSS
dc.contributor.author | Closas Gómez, Pau |
dc.contributor.author | Fernández Prades, Carlos |
dc.contributor.author | Fernández Rubio, Juan Antonio |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.date.accessioned | 2008-02-07T13:29:56Z |
dc.date.available | 2008-02-07T13:29:56Z |
dc.date.created | 2007-05 |
dc.date.issued | 2007-05 |
dc.identifier.citation | Closas Gómez, P; Fernández Prades, C; Fernández Rubio, J.A. Maximum likelihood estimation of position in GNSS. IEEE Signal Processing Letters. 2007, vol. 14, núm.5, pàg. 359-362 |
dc.identifier.uri | http://hdl.handle.net/2117/1576 |
dc.description.abstract | In this letter, we obtain the Maximum Likelihood Estimator of position in the framework of Global Navigation Satellite Systems. This theoretical result is the basis of a completely different approach to the positioning problem, in contrast to the conventional two-steps position estimation, consisting of estimating the synchronization parameters of the in-view satellites and then performing a position estimation with that information. To the authors’ knowledge, this is a novel approach which copes with signal fading and it mitigates multipath and jamming interferences. Besides, the concept of Position–based Synchronization is introduced, which states that synchronization parameters can be recovered from a user position estimation. We provide computer simulation results showing the robustness of the proposed approach in fading multipath channels. The Root Mean Square Error performance of the proposed algorithm is compared to those achieved with state-of-the-art synchronization techniques. A Sequential Monte–Carlo based method is used to deal with the multivariate optimization problem resulting from the ML solution in an iterative way. |
dc.format.extent | 4 |
dc.language.iso | eng |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal |
dc.subject.lcsh | Artifical satellites in communication |
dc.subject.lcsh | Monte Carlo method |
dc.subject.other | Fading multipath channel |
dc.subject.other | Global navigation satellite systems |
dc.subject.other | GNSS |
dc.subject.other | Interference suppression |
dc.subject.other | Iterative methods |
dc.subject.other | Jamming interferences |
dc.subject.other | Maximum likelihood estimation |
dc.subject.other | Monte Carlo methods |
dc.subject.other | Multipath channels |
dc.subject.other | Multivariate optimization problem |
dc.subject.other | Position measurement |
dc.subject.other | Root mean square error |
dc.subject.other | Synchronization |
dc.title | Maximum likelihood estimation of position in GNSS |
dc.type | Article |
dc.subject.lemac | Satèl.lits artificials en telecomunicació |
dc.subject.lemac | Monte Carlo, Mètode de |
dc.contributor.group | Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Open Access |
dc.relation.projectidctt | TEC2006-06481/TCM |
dc.relation.projectidctt | TEC2004-04526 |
dc.relation.projectidctt | TIC2003-04582 |
dc.relation.projectidctt | 2005SGR-00639 |
dc.relation.projectidctt | FIT-330503-2006-2 (m:Ciudad) |
dc.relation.projectidctt | 2005-SGR-00690 |
local.personalitzacitacio | true |
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