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Simulations under Ideal and Nonideal Conditions for Characterization of a Passive Doppler Geographical Location System Using Extension of Data Reception Network

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Autor(es):
de Sousa, Cristina Tobler [1] ; de Moraes, Rodolpho Vilhena [1] ; Kuga, Helio Koiti [2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] UNESP Univ, BR-12516410 Guaratingueta, SP - Brazil
[2] INPE DMC, BR-12245970 Sao Jose Dos Campos - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: MATHEMATICAL PROBLEMS IN ENGINEERING; 2009.
Citações Web of Science: 0
Resumo

This work presents a (Data Reception Network) DRN software investigation considering simulated conditions inserting purposely errors into the Doppler measurements, satellites ephemeris, and time stamp, to characterize the geographical location software (GEOLOC) developed by Sousa (2000) and Sousa et al. (2003). The extension of reception stations in Brazilian territory can result in more precise locations if the network is considered in the GEOLOC. The results and analyses were first obtained considering the ground stations separately, to characterize their effects in the geographical location (GL) result. Six conditions were investigated: ideal simulated conditions, random and bias errors in the Doppler measurements, errors in the satellite ephemeris, and errors in the time stamp in order to investigate the DRN importance to get more accurate locations; an analysis was performed considering the random errors of 1Hz in the Doppler measurements. The results are quite satisfactory and also show good compatibility between the simulator and the GEOLOC using the DRN. Copyright (C) 2009 Cristina Tobler de Sousa et al. (AU)

Processo FAPESP: 05/04497-0 - Desenvolvimento de Rede Brasileira para localização geográfica através de satélites artificiais usando desvio Doppler
Beneficiário:Cristina Tobler de Sousa Rae
Linha de fomento: Bolsas no Brasil - Pós-Doutorado