Vector Sensor Sound Intensity Method for Direction Finding

This article presents a method for calculating average sound intensity using the correlation between particle velocity and acoustic pressure outputs from vector sensors, which enhances directional finding accuracy. Specifically, this approach is based on the sound intensity method direction finding procedure with vector sensors. We will delve into the fundamental principles and applications of this method, along with its contributions to sensing technology and acoustics. The discussion covers the advantages and limitations of this technique, as well as potential directions for improvement. From an implementation perspective, the core algorithm involves computing cross-spectral density between pressure and velocity channels, followed by sound intensity vector estimation through frequency-domain processing. Key functions would include signal preprocessing, phase calibration between sensor channels, and azimuth calculation from intensity vectors. Through this article, readers will gain comprehensive understanding of vector sensor sound intensity direction finding procedures and expand their knowledge in this technical domain.