Investigation of correlation models of spectral nonstationarity of random signals
In the article investigations of probabilistic models of parametrization of local changes of non-stationary random metering signals are carried out. The formalization of the probabilistic properties of non-stationary random signals was carried out, the choice of research models was carried out, the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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LLC Production and Commercial Company «FAVOR, LTD»
2018-10-01
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| Series: | Метрологія та прилади |
| Subjects: | |
| Online Access: | https://mmi-journal.org/index.php/journal/article/view/22 |
| Summary: | In the article investigations of probabilistic models of parametrization of local changes of non-stationary random metering signals are carried out. The formalization of the probabilistic properties of non-stationary random signals was carried out, the choice of research models was carried out, the influence of the effects of spectral non-stationary on the correlation of the harmonic components of the measurement signals was analyzed, the time-frequency auto-coherence models were obtained and investigated; discrete continuous wavelet transforms were used to increase the efficiency of the control (diagnosis) of spectral changes measuring signal in mathematical expectations of mutual spectral correlation. The research is carried out to solve the scientific and practical problem of imperfection and limitations of theoretical substantiation in the creation of computerized information measuring devices for monitoring and diagnosing dynamic objects locally and globally unsteady in their spectral properties. |
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| ISSN: | 2307-2180 2663-9564 |