Applied Physics and Mathematics Annotation << Back Estimation of discrete spectrum of random bivariate function Karmazina Yu.T. Krasny D.V. Grigorevsii N.V. The method of the spectral frequencies estimation with high resolution of bivariate function is developed. It is proposed to use the one-dimensional projection of two-dimensional frequency spectrum for estimating this spectrum using the tomographic methods of two-dimensional object reconstruction. The sample of two-dimensional discrete signal frequencies calculation in comparison with two-dimensional Fourier transform is described. Key words: Fourier transform, two-dimensional spectrum, high resolution methods, bivariate signal distribution, tomographic methods, maximum entropy method, correlation matrix. Contacts: E-mail: meredianaab@mail.ru Pp. 67-74.