Eigenstructure methods for DOA estimation of circular acoustic vector sensor array with axial angle bias in nonuniform noise

Shi, Shengguo; Xu, Fujia; Zhang, Xu; Zhu, Xiaochun; Shen, Nan; Gui, Chenyang

doi:10.1016/j.dsp.2024.104404

Digital Signal Processing

2024

DOI: 10.1016/j.dsp.2024.104404

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Eigenstructure methods for DOA estimation of circular acoustic vector sensor array with axial angle bias in nonuniform noise

Shengguo Shi,

Fujia Xu,

Xu Zhang

et al.

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Robust Underwater Direction-of-Arrival Estimation Method Using Acoustic Sensor Array under Unknown Swing Deviation Elements

Wang,

Ma,

Shi

et al. 2024

Remote Sensing

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This paper presents a strategy called the alternating iterative minimization method (AIMM), aimed at enhancing the precision of direction of arrival (DOA) estimation when utilizing an acoustic vector sensor array (AVSA) with unknown swing deviation elements (SDEs). The AVSA model with unknown SDEs is formulated by incorporating the swing deviation parameter. Later, to estimate the swing deviation matrix (SDM) and the sparse signal power by using the alternating iteration method, the auxiliary cost functions with respect to SDM and the sparse signal power are formulated based on the regularized weighted least squares (RWLS) and regularized covariance matrix fitting (RCMF) criteria. Furthermore, their analytical expressions have also been quantified. In order to mitigate the effect of unknown SDEs on the accuracy of DOA estimation, any sub-time segment (STS) in the dataset is selected as the reference to convert the received data of different STS into the reference STS using the estimated SDM. The simulation and experimental outcomes conclusively represent the effectiveness of the suggested TSIM approach using AVSA in handling unknown SDEs.

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Robust Underwater Direction-of-Arrival Estimation Method Using Acoustic Sensor Array under Unknown Swing Deviation Elements

Wang,

Ma,

Shi

et al. 2024

Remote Sensing

View full text Add to dashboard Cite

show abstract

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Eigenstructure methods for DOA estimation of circular acoustic vector sensor array with axial angle bias in nonuniform noise

Cited by 1 publication

References 30 publications

Robust Underwater Direction-of-Arrival Estimation Method Using Acoustic Sensor Array under Unknown Swing Deviation Elements

Robust Underwater Direction-of-Arrival Estimation Method Using Acoustic Sensor Array under Unknown Swing Deviation Elements

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