Robust differential microphone array with constant mainlobe width and frequency-invariant directivity factor

• Published in: Scientific reports Vol. 15; no. 1; pp. 6565 - 15
• Main Authors: Zheng, Pu, Zhi, Yongfeng
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 24.02.2025; Nature Publishing Group; Nature Portfolio
• Subjects: 639/166; 639/705; 639/766; Arrays; Differential microphone arrays (DMAs); Directivity factor; Frequency dependence; Humanities and Social Sciences; Methods; Microphones; multidisciplinary; Optimization; Performance evaluation; Robust DMAs; Science; Science (multidisciplinary); Sensors; Simulation; White noise gain; Differential microphone arrays (DMAs); White noise gain; Robust DMAs; Directivity factor

Differential beamforming, with its compact size and high directivity factor (DF), offers significant advantages for addressing various acoustic problems. While white noise gain (WNG) serves as a fundamental performance criterion for the robustness of differential microphone arrays (DMAs), simultaneo...