Effects of sensor placement on acoustic vector-sensor array performance

1999 ◽  
Vol 24 (1) ◽  
pp. 33-40 ◽  
Author(s):  
M. Hawkes ◽  
A. Nehorai
Keyword(s):  
Sensor Array ◽  
Sensor Placement ◽  
Acoustic Vector Sensor ◽  
Vector Sensor ◽  
Array Performance ◽  
Vector Sensor Array

Quaternion min-norm algorithm for DOA estimation with acoustic vector sensor array

2014 ◽  
Vol 22 (7) ◽  
pp. 1969-1975
Author(s):  
李新波 LI Xin-bo ◽  
李晓青 LI Xiao-qing ◽  
刘国君 LIU Guo-jun ◽  
石要武 SHI Yao-wu ◽  
杨志刚 YANG Zhi-gang
Keyword(s):  
Sensor Array ◽  
Doa Estimation ◽  
Acoustic Vector Sensor ◽  
Vector Sensor ◽  
Vector Sensor Array

Cumulant-Based 2-D Direction Estimation Using an Acoustic Vector Sensor Array

2020 ◽  
Vol 56 (2) ◽  
pp. 956-971 ◽  
Author(s):  
Jin He ◽  
Zenghui Zhang ◽  
Chen Gu ◽  
Ting Shu ◽  
Wenxian Yu
Keyword(s):  
Sensor Array ◽  
Acoustic Vector Sensor ◽  
Direction Estimation ◽  
Vector Sensor ◽  
Vector Sensor Array

scholarly journals Frequency Invariant Beamforming for a Small-Sized Bi-Cone Acoustic Vector–Sensor Array

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 661
Author(s):  
Erzheng Fang ◽  
Chenyang Gui ◽  
Desen Yang ◽  
Zhongrui Zhu
Keyword(s):  
Sensor Array ◽  
Three Dimensional ◽  
Sensor Arrays ◽  
Signal Frequency ◽  
Acoustic Vector Sensor ◽  
Mechanical Coupling ◽  
Vector Sensor ◽  
Coupling System ◽  
Simulation Results ◽  
Vector Sensor Array

In this work, we design a small-sized bi-cone acoustic vector-sensor array (BCAVSA) and propose a frequency invariant beamforming method for the BCAVSA, inspired by the Ormia ochracea’s coupling ears and harmonic nesting. First, we design a BCAVSA using several sets of cylindrical acoustic vector-sensor arrays (AVSAs), which are used as a guide to construct the constant beamwidth beamformer. Due to the mechanical coupling system of the Ormia ochracea’s two ears, the phase and amplitude differences of acoustic signals at the bilateral tympanal membranes are magnified. To obtain a virtual BCAVSA with larger interelement distances, we then extend the coupling magnified system into the BCAVSA by deriving the expression of the coupling magnified matrix for the BCAVSA and providing the selecting method of coupled parameters for fitting the underwater signal frequency. Finally, the frequency invariant beamforming method is developed to acquire the constant beamwidth pattern in the three-dimensional plane by deriving several sets of the frequency weighted coefficients for the different cylindrical AVSAs. Simulation results show that this method achieves a narrower mainlobe width compared to the original BCAVSA. This method has lower sidelobes and a narrower mainlobe width compared to the coupling magnified bi-cone pressure sensor array.

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