2018-05-102018-05-102013-05VINHAL, Gustavo Siqueira; NOGUEIRA, Heber Valdo; SILVA, Iara Maia; GALVÃO FILHO, Arlindo Rodrigues; LUCENA, Daniel Vitor de; SOARES, Anderson da Silva; SOARES, Telma Woerle de Lima; COELHO, Clarimar José. Filtragem e melhoramento de espectros com filtro de Kalman. Abakós, Belo Horizonte, v. 1, n. 2, p. 31-44, maio 2013.e- 2316-9451http://repositorio.bc.ufg.br/handle/ri/14863This work presents the Kalman filter as a tool to pre-processing spectrophotometric signals in chemometric context. Initially the main concepts of the Kalman filter are introduced. The Kalman filter is used with steel alloys samples. The filtered signal is used in the multivariate calibration to construct a mathematical model with good predictive ability. The filter efficiency is demonstrated using a data set obtained by an atomic emission plasma with low resolution spectrophotometer to treat the problem of simultaneous determination of Manganese (Mn), Molybdenum (Mo), Chromium (Cr), Nickel (Ni) and Iron (Fe). The results show that the Kalman filter can be applied with advantages over other traditional techniques shown in chemometrics as a moving average filter.porAcesso AbertoFiltro de KalmanCalibração multivariadaProcessamento de sinaisKalman filterMultivariate calibrationSignal processingArtigo10.5752/P.2316-9451.%25y1232-44