DETERMINAÇÃO DE INTERVALOS ÓTIMOS PARA CALIBRAÇÃO DE RELÓGIOS / DETERMINATIO OF BEST INTERVAL FOR CLOCKS CALIBRATIONS
AUTOR(ES)
RICARDO MARTINS DE AZEVEDO
DATA DE PUBLICAÇÃO
1999
RESUMO
In this work we study the application of the Box &Jenlins methodology to series of differences between precision clocks to define what is the best interval between calibratons. We use an ensemble of preceedings that allows the automatizion of this methodology to a level where there are no more need of human´s intervention. We propose the use of variance analysis to define the order of differentiation necessary to each series, the use of Extended Autocorrelation Function to define the model´s hiperparameters, the use of Recursive Pondered Least Square to obtain the model´s parameters and some tests to validate the resulting model. We use data from clocks of the National Observatory - Hour Department, Frequency and Time Primary Laboratory to show that the proposed methodology is valid.
ASSUNTO(S)
relogios atomicos time scale atomic clocks escala de tempo
ACESSO AO ARTIGO
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