The maximum entropy method (MEM) for spectral analysis is described and compared to Welch's procedure using the fast Fourier transform (FFT) algorithm. Comparative results are presented for the application of these two spectral analysis techniques to computer-generated radar clutter data produced using a model developed by Hawkes and Haykin. These results show that the resolution capabilities of the MEM are superior to Welch's procedure. This feature is particularly notable in the analysis of very short clutter data records.La methode entropique maximale (MEM) pour l'analyse spectrale est decrite et comparee a la methode Welch utilisant l'algorithme Fourier a transforma tion rapide (FFT). Des resultats comparatifs sont presentes pour 1'application de ces deux techniques d'analyse spectrale a des signaux parasites engendres par ordinateur, a l'aide d'un modele mis au point par Hawkes et Haykin. Ces resultats montrent que les capacites de resolution du MEM sont superieures a la methode Welch. Cette caracteristique est particulierement remarquable dans l'analyse des signaux parasites en petites quantites.
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