Wavelet correlations of nonstationary signals
- Авторлар: Bozhokin S.1, Zharko S.1, Larionov N.1, Litvinov A.1, Sokolov I.1
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Мекемелер:
- St. Petersburg State Polytechnical University
- Шығарылым: Том 62, № 6 (2017)
- Беттер: 837-845
- Бөлім: Theoretical and Mathematical Physics
- URL: https://journals.rcsi.science/1063-7842/article/view/199489
- DOI: https://doi.org/10.1134/S1063784217060068
- ID: 199489
Дәйексөз келтіру
Аннотация
Two approaches to the analysis of nonstationary random signals are proposed and studied. The first approach is based on the adaptive Morlet wavelet that allows variations in time and frequency resolution of signals using an auxiliary control parameter. The second approach is related to the application of double correlation function that represents correlation of continuous wavelet transforms of two signals calculated in time and frequency domains. The advantages of the proposed correlation function in comparison with alternative correlation functions, in particular, analysis of both time and frequency correlations of nonstationary signals are outlined. Applications of the proposed approaches in the analysis of various transient processes in physics are discussed.
Авторлар туралы
S. Bozhokin
St. Petersburg State Polytechnical University
Хат алмасуға жауапты Автор.
Email: bsvjob@mail.ru
Ресей, Politekhnicheskaya ul. 29, St. Petersburg, 199034
S. Zharko
St. Petersburg State Polytechnical University
Email: bsvjob@mail.ru
Ресей, Politekhnicheskaya ul. 29, St. Petersburg, 199034
N. Larionov
St. Petersburg State Polytechnical University
Email: bsvjob@mail.ru
Ресей, Politekhnicheskaya ul. 29, St. Petersburg, 199034
A. Litvinov
St. Petersburg State Polytechnical University
Email: bsvjob@mail.ru
Ресей, Politekhnicheskaya ul. 29, St. Petersburg, 199034
I. Sokolov
St. Petersburg State Polytechnical University
Email: bsvjob@mail.ru
Ресей, Politekhnicheskaya ul. 29, St. Petersburg, 199034