Method of flicker-noise spectroscopy of cosmic ray muon flux variations caused by non-stationary processes

International Conference on Particle Physics and Astrophysics

物理学;天文学

Borog, V.V.^1 ; Dmitrieva, A.N.^1 ; Kovylyaeva, A.A.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe shosse 31, Moscow

115409, Russia^1

关键词: Cosmic-ray muons;    Flicker-noise spectroscopies;    Geophysical process;    Ground level;    Muon hodoscopes;    Non-stationary time series;    Nonstationary process;    Real time series;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/798/1/012050/pdf
DOI  :  10.1088/1742-6596/798/1/012050

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

A new method of identifying signals in a statistically noisy non-stationary time series is presented. Unlike in the Fourier and wavelet analyses, in the processing of data no assumptions about the structure of analyzed signal is made. The proposed method of flicker-noise spectroscopy is illustrated with a real time series related to monitoring of solar and cosmic radiation during GLE#72 event using ground-level muon hodoscope. The method is applicable for the analysis of a wide range of various helio- and geophysical processes.