| 高阶矩谱分析与空间等离子体非线性相互作用识别 |
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| 引用本文： | 赵正予 谢树果. 高阶矩谱分析与空间等离子体非线性相互作用识别[J]. 空间科学学报, 1999, 19(1): 22-27 |
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| 作者姓名： | 赵正予 谢树果 |
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| 作者单位： | 武汉大学电子信息学院!430072 |
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| 摘 要： | 利用高阶矩统计分析方法对ＡＵＲＥＯＬ－３卫星观测数据进行分析处理，所涉及的信号分别为ＥＬＦ频率范围内的电场扰动Ｅｈ（ｔ）和等离子体密度波动δＮｅ／ｎｅ（ｔ），处理结果表明：利用高阶矩谱分析方法可以很好地识别空间等离了波－粒相互作用过程中的非线性成分
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| 关 键 词： | 高阶矩谱分析 空间等离子体 非线性过程 |
HIGHER-ORDER STATISTICS AND IDENTIFICATION OF NON-LINEAR PROCESSES IN SPACE PLASMAS |
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| ZHAO Zhengyu, XIE Shuguo, SHI Xianqing. HIGHER-ORDER STATISTICS AND IDENTIFICATION OF NON-LINEAR PROCESSES IN SPACE PLASMAS[J]. Chinese Journal of Space Science, 1999, 19(1): 22-27 |
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| Authors: | ZHAO Zhengyu XIE Shuguo SHI Xianqing |
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| 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 ELF frequency 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. |
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| Keywords: | Higher-order analysis Space plasma Non-linear processes identification |
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