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超低频大气噪声幅度概率的SαS分布法 被引量：1

APD model for ELF atmospheric noise based on SαS distribution
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摘要 为正确辨识超低频大气噪声的幅度概率分布类型,对其进行有效抑制,首先,假设实际大气噪声幅度概率分布服从SαS(symmetric α stable)分布,从而估计出分布的模型参数;然后,由此计算出该参数下SαS分布的理论幅度概率分布并生成服从SαS分布的随机样本;最后,采用与实际数据APD比较和做Q-Q图的方法验证了分布拟合的正确性。结果表明:SαS分布可以有效地描述出超低频大气噪声的幅度概率分布。 The amplitude probability distribution（APD） of the extremely low frequency（ELF） atmospheric noise was fitted with the symmetric α-stable（SαS） distribution.Firstly,the parameters of the model were estimated by using the log｜SαS｜ method on the assumption that the distribution of ELF atmospheric noise was SαS distribution.Secondly,the theoretical APD of the SαS distribution was calculated and compared with the actual ELF atmospheric noise data to test the correctness of the fitness.The result shows that SαS distribution can fit the APD of the ELF atmospheric noise effectively.
作者 付天晖 周穗华 叶慧娟
机构地区 海军工程大学兵器工程系
出处 《海军工程大学学报》 CAS 北大核心 2010年第6期91-95,共5页 Journal of Naval University of Engineering
关键词 SαS分布 超低频大气噪声 幅度概率分布模型 SαS distribution ELF atmospheric noise APD model
分类号 TN911.4 [电子电信—通信与信息系统]
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参考文献11

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共引文献11

同被引文献12

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海军工程大学学报
2010年 第6期

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