A Maximum-likelihood based mutual coupling calibration algorithm in the presence of multipath for GPS antenna array

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dc.contributor.authorXu, Z.
dc.contributor.authorTrinkle, M.
dc.contributor.authorGray, D.
dc.contributor.conference24th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS) (20 Sep 2010 - 23 Sep 2010 : Portland, OR)
dc.date.issued2011
dc.description.abstractIn GPS area, several GPS antenna array calibration techniques have been proposed to calibrate errors like gain/phase error in each channel, mutual coupling effect between antennas and array orientation error in array. However, none of these techniques consider possible multipath effect of calibrating sources, which can cause inaccurate estimations of array errors. In this paper, an algorithm based GPS antenna array technique is proposed to calibrate array orientation error and modeled mutual coupling effect in the presence of multipath signals. The calibration algorithm uses the fact that if the errors in the array are correctly calibrated, the array manifold and the signal should span the same subspace at the signal bearings to estimate the modeled errors. The array errors and DOAs of multipath signals are estimated by maximum-likelihood based approaches in an iterative sequence. This paper first describes the models of the received signals and the errors. The four steps iterative calibration algorithm is described later. At last, the performance of the algorithm is analyzed by the simulations and the experiment.
dc.description.statementofresponsibilityZ. Xu, M. Trinkle, D.A. Gray
dc.identifier.citation24th International Technical Meeting of the Satellite Division of the Institute of Navigation 2011 (ION GNSS 2011), 2011, vol.2, pp.1111-1119
dc.identifier.isbn9781618394750
dc.identifier.issn2331-5911
dc.identifier.issn2331-5954
dc.identifier.urihttp://hdl.handle.net/2440/89149
dc.language.isoen
dc.publisherInstitute of Navigation
dc.relation.ispartofseriesInstitute of Navigation Satellite Division Proceedings of the International Technical Meeting
dc.rightsCopyright© (2011) by the Institute of Navigation
dc.titleA Maximum-likelihood based mutual coupling calibration algorithm in the presence of multipath for GPS antenna array
dc.typeConference paper
pubs.publication-statusPublished

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