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GPS Satellite Kinematic Relative Positioning: Analyzing and Improving the Functional Mathematical Model Using Wavelets

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Autor(es):
de Souza, Eniuce Menezes ; Galera Monico, Joao Francisco ; Pagamisse, Aylton
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: MATHEMATICAL PROBLEMS IN ENGINEERING; v. 2009, p. 18-pg., 2009-01-01.
Resumo

Although GPS kinematic relative positioning can provide high accuracy, GPS observables, like any other kind of measurement, are not free of errors. Indeed, they have several kinds of errors. In this paper, we show how to construct a functional mathematical model within the context of a Kalman Filter in order to eliminate most of these errors. Furthermore, we discuss how the multipath effect, a kind of error not modeled in the functional model, can be corrected using the proposed wavelet method. The behavior of the double difference functional model in the kinematic mode is also demonstrated and analyzed aiming to provide better insight into the problem. The results obtained from the multipath experiments were very promising and are presented here. Copyright (C) 2009 Eniuce Menezes de Souza et al. (AU)

Processo FAPESP: 03/12770-3 - Analise wavelet: deteccao e reducao do multicaminho no posicionamento relaticvo gnss estatico e cinematico.
Beneficiário:Eniuce Menezes de Souza
Modalidade de apoio: Bolsas no Brasil - Doutorado
Processo FAPESP: 06/04008-2 - GNSS: investigações e aplicações no posicionamento geodésico, em estudos relacionados com a atmosfera e na agricultura de precisão
Beneficiário:Joao Francisco Galera Monico
Modalidade de apoio: Auxílio à Pesquisa - Temático