Please use this identifier to cite or link to this item:
|Type:||Artigo de periódico|
|Title:||Utilization Of Fourier Transform Filter For Noise Minimization In Analytical Signals [utilização De Filtro De Transfomada De Fourier Para A Minimizaçã De Ruídos Em Sinais Analíticos]|
|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.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.