Maximum entropy spectral analysis of some artificial samples

Details Maximum entropy spectral analysis of some artificial samples Maximum entropy spectral analysis of some artificial samples

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84..965k&link_type=abstract

Journal of Geophysical Research, vol. 84, Mar. 1, 1979, p. 965, 966. Research supported by the Department of Space of India.

Physics

Geophysics

16

Entropy, Geophysics, Spectrum Analysis, Core Sampling, Power Spectra, Soils

Scientific paper

Using simple sinusoids as inputs, the Burg spectra are studied with a view to deciding the appropriate lengths of the prediction error filter (LPEF). It is observed that the higher the frequency (vis a vis the total data length representing the fundamental period), the lower the LPEF needed. In the case of mixed samples, frequencies exceeding the fifth harmonic are resolved with LPEF of about 50% (half-data length) and higher LPEF are likely to give spurious peaks. For lower frequencies, higher LPEF may be needed, sometimes even approaching 90% of the data length. Thus a mixed sample needs the study of Burg spectra from low as well as high LPEF simultaneously.

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