Abstract:

The estimation of maximum entropy spectrum is one of the modern estimation methods of high resolution spectrum. It has incomparable advantage over the conventional spectrum estimation, especially in processing short data. However, the use of the maximum entropy spectrum is much limited for the amplitude distortion in the estin ation.This paper emphatically introduces the accurate least squares method which is used to compute the optimum frequencies of the maximum entropy spectral signal and to get the true amplitudes and phases of the original signals by the regression method of trigonometric function.In this case，the method used to determine the Position of the oPtimum frequencies is a simple and accurate method，which is much better than those used before.

Key words: Treatment of seismic signal, Estimation of maximum entropy speetrum, Regression method of trigonometric function