Investigations of the Methods of Time Delay Measurement of Stochastic Signals Using Cross-correlation with the Hilbert Transform

被引：0

作者：

Hanus, Robert ^{[1
]}

Zych, Marcin ^{[2
]}

Chorzepa, Rafal ^{[1
]}

Golijanek-Jedrzejczyk, Anna ^{[3
]}

机构：

[1] Rzeszow Univ Technol, Fac Elect & Comp Engn, Rzeszow, Poland

[2] AGH Univ Sci & Technol, Fac Geol Geophys & Environm Protect, Krakow, Poland

[3] Gdansk Univ Technol, Fac Elect & Control Engn, Gdansk, Poland

来源：

20TH IEEE MEDITERRANEAN ELETROTECHNICAL CONFERENCE (IEEE MELECON 2020) | 2020年

关键词：

Time delay measurement; random signals; cross-correlation; Hilbert Transform;

D O I：

10.1109/melecon48756.2020.9140630

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The article presents the results of simulation studies of four methods of time delay estimation for random signals using cross-correlation with the Hilbert Transform. Selected models of mutually delayed stochastic signals were used in the simulations, corresponding to the signals obtained from scintillation detectors in radioisotope measurements of liquid-gas two-phase flow. Standard deviations of the values of the individual functions were designated and compared, along with standard deviations of time delay estimates determined on their basis. The obtained results were compared with the results for classic cross-correlation function (CCF). It was found that for the analysed range of the signal-to-noise ratio (SNR): 0.2 <= SNR <= 5, the lowest values of standard deviation of time delay estimates were obtained for the CCFHT function (cross-correlation with the Hilbert Transform of the delayed signal).

引用

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页码：238 / 242

页数：5

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