Some remarks on the Fourier analysis of Moessbauer spectra

A filter constructed on the basis of differential filters and a Fermi type function is described in application to the correction of the accuracy of determining line positions in Moessbauer spectroscopy. A general method of estimating the error of Moessbauer spectrum parameters fitted to a filtered spectrum is also described. This numerical method takes into consideration not only a linear approximation of the fitted function, but also all higher contributions. (author)