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HIGHER-ORDER STATISTICS AND IDENTIFICATION OF NON-LINEAR PROCESSES IN SPACE PLASMAS

ZHAO Zhengyu, XIE Shuguo, SHI Xianqing   

  1. College of Electronic information, Wuhan University, 430072
  • Received:1998-02-25 Revised:1998-10-05 Online:1999-01-24 Published:1999-01-24

Abstract: Using the higher-order statistical methods, the physical properties of certainsatallite data were described. The question addressed in this paper is the usefulness of higher-order statistics for identification of the wave-particles interaction inspace plasmas. The signals considered here are respectively ELFfrequency rangeelectrostatic turbulence and fluctuation in electron density measured on the low latitude satellite AUREOL-3 from the ARCAD-3 scientific experiment. The analysisshows that one can well identify the non-linear behaviour in the processes usingsuch method.

Key words: Auroral electrojet event, IMFBy, Convective electric field, Solar activity