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- W3197711930 abstract "The discrimination between surface and submerged targets is one of the research focuses of passive sonar target recognition. In this paper, a discrimination method based on frequency diversity in wavenumber domain is proposed. The energy distribution in frequency-wavenumber domain is extracted by horizontal array modal beamforming method, and the wavenumber domain information of each frequency point is coherently superimposed to obtain the frequency diversity wavenumber domain eigenvalue. According to the prior knowledge of environment and the normal mode acoustic field simulation method, the decision threshold of discrimination can be generated. Based on the comparison between the eigenvalues of frequency diversity wavenumber domain and the decision threshold, the surface and submerged targets resolution of passive horizontal array is obtained. Simulation results show that the proposed method can effectively extract the frequency diversity wavenumber characteristics of target radiated noise in 96m and 192m horizontal array aperture, which can be used for engineering discrimination of surface and submerged targets." @default.
- W3197711930 created "2021-09-13" @default.
- W3197711930 creator A5071458554 @default.
- W3197711930 date "2021-07-14" @default.
- W3197711930 modified "2023-09-27" @default.
- W3197711930 title "A Discrimination Method between Surface and Submerged Targets based on Frequency Diversity Wavenumber Domain Features" @default.
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- W3197711930 doi "https://doi.org/10.1109/coa50123.2021.9519862" @default.
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