Design of Steerable Linear Differential Microphone Arrays With Omnidirectional and Bidirectional Sensors

Luo X, Jin J, Huang G, Chen J, Benesty J (2023)

Publication Type: Journal article

Publication year: 2023

Journal

IEEE Signal Processing Letters Institute of Electrical and Electronics Engineers (IEEE)

Pages Range: 1-5

DOI: 10.1109/LSP.2023.3267969

Abstract

This paper is dedicated to the design of fully steerable linear differential microphone arrays (LDMAs). We analyze the steerable ideal spatial responses and explain why conventional LDMAs consisting of only omnidirectional microphones have limited steering ability. In order to circumvent this limitation, we suggest to use both omnidirectional and bidirectional (with a dipole shaped directivity pattern) microphones. We discuss the minimum numbers of omnidirectional and bidirectional sensors required for achieving steerable spatial responses and present a method to design fully steerable differential beamformers with LDMAs through the Jacobi-Anger series expansion. Simulations validate the presented technique and the steering flexibility of the designed LDMAs.

Authors with CRIS profile

Gongping Huang Lehrstuhl für Multimediakommunikation und Signalverarbeitung

Involved external institutions

Northwestern Polytechnical University / 西北工业大学 (NPU/NWPU) CN China (CN) The Énergie Matériaux Télécommunications (Energy Materials Telecommunications) Research Centre CA Canada (CA)

How to cite

APA:

Luo, X., Jin, J., Huang, G., Chen, J., & Benesty, J. (2023). Design of Steerable Linear Differential Microphone Arrays With Omnidirectional and Bidirectional Sensors. IEEE Signal Processing Letters, 1-5. https://dx.doi.org/10.1109/LSP.2023.3267969

MLA:

Luo, Xueqin, et al. "Design of Steerable Linear Differential Microphone Arrays With Omnidirectional and Bidirectional Sensors." IEEE Signal Processing Letters (2023): 1-5.

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