分析地球磁场日变化的希尔伯特变换

2021 IEEE 12th International Conference on Electronics and Information Technologies (ELIT) Pub Date : 2021-05-19 DOI:10.1109/ELIT53502.2021.9501150

Ihor Javorskyj, R. Yuzefovych, O. Lychak, P. Kurapov

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引用次数: 3

摘要

将地球磁场变化建模为周期性非平稳随机过程。分析了PNRP方法处理实际时间序列的结果，提出了磁场日变化模型，其形式为随机调幅和调相谐波与日频率及其倍数的叠加。考虑了用希尔伯特变换分离的各分量的正交协方差和谱结构。结果表明，各组分是共同的PNRP。所得结果可用于地球磁场日变化的参数化和计算机模拟。

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Hilbert Transform for Analysis of Daily Changes of the Earth Magnetic Field

Modeling of the Earth magnetic field variations as periodically non-stationary random process (PNRP) is represented. Results of processing real-life time-series by PNRP methods are analyzed and model of magnetic field daily variations in the form of superposition of stochastically amplitude and phase-modulated harmonics with daily frequency and its multiples is proposed. The covariance and spectral structures of the quadratures for the individual components wich was separated using Hilbert transform are considered. It is show that individual component are jontly PNRP. Obtained results can be usefull for parameterization and computer simulation of the daily variations of Earth magnetic field.

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2021 IEEE 12th International Conference on Electronics and Information Technologies (ELIT)

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