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Study On The Maximum Entropy Method Spectral Analysis And Deconvolution

Posted on:2010-12-18Degree:MasterType:Thesis
Country:ChinaCandidate:J MengFull Text:PDF
GTID:2120360278955430Subject:Earth Exploration and Information Technology
Abstract/Summary:PDF Full Text Request
Following principle of the maximum entropy method,the maximum entropy spectral analysis and the deconvolution is studyed in the paper.Maximum entropy spectral analysis is the recursive method which derive out outside data without any certainty assumption under the premise of the largest information entropy.The peaks of spectrum relatively sharp, its resolution is high than conventional.Maximum entropy deconvolution is a high resolution method, It's characterized by introduction of delivery order prediction error, and the result is the reflection coefficient sequence.So,maximum entropy deconvolution algorithm a recursive deconvolution.Through the maximum entropy method of spectral analysis principle in the paper,the maximum entropy method spectral analysis is established, and to achieve the mathematical model and the measured data by program;compared the result in two methods of the maximum entropy and Fourier spectral analysis under different length of the sampling points, as well as contrast to the results in different order in maximum entropy method spectral analysis. in the basis of maximum entropy principle, and verify the characteristics of the maximum entropy spectral analysis have higher resolution.Through the maximum entropy deconvolution principle, establish the maximum entropy method of deconvolution to achieve it in the paper, to achieve theoretical model, the physical model and the actual field data by program;then compare results of the maximum entropy deconvolution with the spike; At the same time, to achieve maximum entropy deconvolution for the data after minimum-phase filter processing, and compare the results with the data following spike and the result without minimum-phase filter processing in maximum entropy deconvolution.Verify the superiority of high-resolution and tracking weak axis in maximum entropy deconvolution.
Keywords/Search Tags:Maximum Entropy Method, Spectrum Analysis, Deconvolution
PDF Full Text Request
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