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|Type:||Artigo de periódico|
|Title:||Utilization of Fourier transform filter for noise minimization in analytical signals.|
|Abstract:||Instrumental data always present some noise. The analytical data information and instrumental noise generally has different frequencies. Thus is possible to remove the noise using a digital filter based on Fourier transform and inverse Fourier transform. This procedure enhance the signal/noise ratio and consecutively increase the detection limits on instrumental analysis. The basic principle of Fourier transform filter with modifications implemented to improve its performance is presented. A numerical example, as well as a real voltammetric example are showed to demonstrate the Fourier transform filter implementation. The programs to perform the Fourier transform filter, in Matlab and Visual Basic languages, are included as appendices|
|Editor:||Soc Brasileira Quimica|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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