The Power Spectral Density technique applied to micropulsation analysis |
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Authors: | W F Stuart Vicki Sherwood Sheena M Macintosh |
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Institution: | (1) Geomagnetism Unit, Geophysical Laboratorics, 6 South Oswald Road, Edinburgh-9, UK |
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Abstract: | Summary An empirical investigation has been conducted on the practical methods of obtaining the spectra of micropulsation activity, and the interpretational limits which can be applied to the detailed use of spectra computed by the Power Spectral Density (PSD) method. Results indicate that sufficiently high resolution may be obtained reliably from the PSD method for it to be regarded as a useful improvement over handscaling methods. The limitation is shown to remain in the selection of events rather than in computational or instrumental properties. |
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