Time Delay Estimation Using Cross-power Spectrum Phase

Chao DING; Zhe CHEN; Zongtang ZHANG; Yusheng CHENG

doi:10.11999/JEIT200584

Volume 43 Issue 3

Mar. 2021

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Chao DING, Zhe CHEN, Zongtang ZHANG, Yusheng CHENG. Time Delay Estimation Using Cross-power Spectrum Phase[J]. Journal of Electronics & Information Technology, 2021, 43(3): 803-808. doi: 10.11999/JEIT200584

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Chao DING, Zhe CHEN, Zongtang ZHANG, Yusheng CHENG. Time Delay Estimation Using Cross-power Spectrum Phase[J]. Journal of Electronics & Information Technology, 2021, 43(3): 803-808. doi: 10.11999/JEIT200584

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Time Delay Estimation Using Cross-power Spectrum Phase

doi: 10.11999/JEIT200584

Navy Submarine Academy, Qingdao 266000, China

Received Date: 2020-07-16
Rev Recd Date: 2021-02-23

Available Online: 2021-02-25

Publish Date: 2021-03-22

Abstract

Abstract

Time Delay Estimation(TDE) is an important research subject in underwater acoustic field. Passive direction-finding and passive location based on TDE are important brunches in passive location of underwater acoustic target. At present, the common TDE methods include Normalized Cross Correlation(NCC) method, Generalized Cross Correlation(GCC) method and Least Mean Square(LMS) method. Different from the above methods, a new method of TDE is designed by using Cross-power Spectrum Phase(CSP) in this paper. This method performs Fourier transform of CSP and uses the transform domain to estimate the CSP slope to get the time delay. This method can realize multi-target resolution and eliminate the ambiguity and background fluctuation. Simulation results show that this proposed method is better than NCC and GCC.
- Time Delay Estimation (TDE),
- Cross-power Spectrum Phase (CSP),
- Fourier transform

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References(18)

References

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