Interpretation of spectra of geomagnetic pulsations as a spectrum of modulated oscillations |
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| Authors: | Jaroslav St?e?tík Reviewer M Hvo?dara |
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| Institution: | (1) Geophysical Institute, Czechosl. Acad. Sci. Prague, Czechoslovakia |
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| Abstract: | Summary The analysis of spectra of modulated oscillations is used to show how these oscillations are distorted when recorded by an instrument whose characteristics depend on frequency, and under what conditions the parameters of the original modulated oscillations can be derived directly from the record. Geomagnetic Pc3 and Pi2 pulsations, recorded at the Budkov Observatory, are discussed; these can be interpreted as amplitude or frequency modulated oscillations.
      a     aa ua n m ¶rt; ua   u u naa, a mu uuu ua nu umauu nu , aamumuu m aum m  amm, u nu au u n u anuu mu naam naa ¶rt;ua uu.  aa maaum nauu Pc3 u Pi2 amuu  ¶rt;, m m m umnmua a anum¶rt; uu amm ¶rt;ua uuu.
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