Detection of Underwater Target Based on Diagonal Slice of Fourth-Order Cumulant

Guang-jin, He; Jin-fang, Cheng; He, Xiuli; You, Xiudong

doi:10.1109/isa.2011.5873271

Cited by 4 publications

(9 citation statements)

References 7 publications

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“…Due to the advantages of the higher-order domain method, it can identify the non-Gaussian [17] and nonlinear inherent in the acoustic signal data of oceanic observation targets. Therefore, the use of higher-order spectral analysis in oceanic acoustic observation signals can improve the conventional feature representation and provide important additional information for analysts [18].…”

Section: Advantages Of the High-order Domain Methodsmentioning

confidence: 99%

“…However, the non-Gaussian property of the signal becomes weak under the condition of low SNR, the bispectrum detection effect becomes poor. In contrast, the fourth-order cumulative spectrum method is unaffected by additive Gaussian noise and suppresses symmetric distribution noise in addition to conventional advantages, which can be used in low SNR environments [17].…”

Section: B Fourth-order Domain Feature Extraction Technologymentioning

confidence: 99%

“…Similar to the third-order cumulants, the fourth-order cumulants can also define the concept of slices [79]. Non-Gaussian coefficients will give a larger value of fourth-order statistical cumulants (kurtosis) to the signal, while conventional noise coefficients with Gaussian PDF have small kurtosis values [23].…”

Section: ) Trispectrum and The Diagonal Slice Of The Trispectrummentioning

confidence: 99%

“…Thus kurtosis can distinguish the target signal part from the noise part of data for feature extraction purposes. On this basis, the estimated value of diagonal slices of the fourth-order cumulant [17]…”

Section: ) Trispectrum and The Diagonal Slice Of The Trispectrummentioning

confidence: 99%

“…1. [63] [85]- [92] 9 [17] [73]- [84] 13 [51]- [72] 22 [48]- [50] 3 [18]- [20] [22]- [47] Among high-order domain feature extraction technology, the third-order cumulant and its extensions such as bispectrum, and bispectrum diagonal slice are mostly used as the tools for signal feature extraction and analysis based on the advantages of anti-Gaussian noise of the third-order cumulant early. The third-order cumulant and bispectrum methods are the main methods in the thirdorder domain method.…”

Section: Introductionmentioning

confidence: 99%

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High-Order Domain Feature Extraction Technology for Ocean Acoustic Observation Signals: A Review

et al. 2023

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For the acquisition of ocean observation information, the underwater acoustic signal is the only known medium that can propagate over long distances in water. However, the underwater acoustic field environment is highly time-varying and spatially variable, and ocean acoustic observation signals are mixed Gaussian, non-cooperative, and nonlinear. Therefore, feature extraction of underwater target signals has been a challenging research direction. The high-order domain feature extraction method of ocean acoustic observation signal is widely used because of its advantages of anti-Gaussian background noise and preservation of signal phase information. Firstly, this paper analyzes three aspects, including the characteristics of ocean acoustic observation signals, the limitations of second-order domain processing methods, and advantages of high-order domain processing methods. Then, this paper focuses on theoretical advantages and application areas of signal high-order domain feature extraction technology. The technical development and application performance of common feature extraction technology in the field of ocean acoustic observation signal processing by higher-order domain methods in recent years are analyzed in the paper, and the challenges and future trends of higher-order domain feature extraction technology in marine acoustic observation signal processing are discussed in the context of recent studies.

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Section: Advantages Of the High-order Domain Methodsmentioning

confidence: 99%

Section: B Fourth-order Domain Feature Extraction Technologymentioning

confidence: 99%

Section: ) Trispectrum and The Diagonal Slice Of The Trispectrummentioning

confidence: 99%

Section: ) Trispectrum and The Diagonal Slice Of The Trispectrummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High-Order Domain Feature Extraction Technology for Ocean Acoustic Observation Signals: A Review

et al. 2023

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Line Spectrum Enhancement of Underwater Acoustic Signals Using Kalman Filter

Zhang

Ali

et al. 2020

J. Marine. Sci. Appl.

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Fourth-order correlation statistics of an electromagnetic plane wave scattered by a quasi-homogeneous medium

Li¹,

Qin²,

Zhou³

2011

J. Opt.

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Within the accuracy of the first-order Born approximation, the fourth-order correlation statistics of an electromagnetic plane wave scattering from a quasi-homogeneous (QH) medium is studied. Under the assumption that the fluctuations of the scattering potential obey Gaussian statistics, the moment theorem for a complex Gaussian random process is utilized to formulate fourth-order correlations for the case of an electromagnetic plane wave incident on a QH medium. The effects of the polarization of the incident plane waves and the scattering azimuth angles on the correlation properties are discussed by numerical examples. It is verified that, in general, the numerical values of the correlations between intensity fluctuations for the electromagnetic case cannot exceed those for the scalar case. Only when a certain limitation to the scattering angles or initial polarization is imposed are the values for the two cases equal to one another.

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Detection of Underwater Target Based on Diagonal Slice of Fourth-Order Cumulant

Cited by 4 publications

References 7 publications

High-Order Domain Feature Extraction Technology for Ocean Acoustic Observation Signals: A Review

High-Order Domain Feature Extraction Technology for Ocean Acoustic Observation Signals: A Review

Line Spectrum Enhancement of Underwater Acoustic Signals Using Kalman Filter

Fourth-order correlation statistics of an electromagnetic plane wave scattered by a quasi-homogeneous medium

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