The problem of multiple acoustic source localization using observations from a microphone array network is investigated in this article. Multiple signals are assumed to be window-disjoint-orthogonal (WDO) on the time-frequency (TF) domain and time delay arrival (TDOA) measurements extracted at each TF bin. A Bayesian model then proposed jointly assign different sources estimate locations. Consi...

The circular double-layer array of loudspeakers has been proven feasible in reproducing an expected sound field inside the array and reducing sound waves propagating outside the array. Usually the performance is evaluated by two criteria concerning the acoustic pressure matching and the acoustic contrast. In this paper, the standard parameter related to the localization cues of human auditory s...

Current processing of acoustic array data is burdened with considerable uncertainty. This study reports an original methodology that serves to demystify array results, reduce misinterpretation, and accurately quantify position and strength of acoustic sources. Traditional array results represent noise sources that are convolved with array beamform response functions, which depend on array geome...

The versatility and real-time imaging capability of commercial linear array transducers make them widely used in clinical ultrasound and photoacoustic imaging. However, they often suffer from limited detection view. For instance, acoustic waves traveling at a grazing angle to the transducer surface are difficult to detect. In this letter, we propose a simple and easy approach to ameliorate this...

As civil infrastructure ages, the early detection of damage in a structure becomes increasingly important for both life safety and economic reasons. This paper describes the analysis procedures used for beamforming acoustic emission techniques as well as the promising results of preliminary experimental tests on a concrete bridge deck. The method of acoustic emission offers a tool for detecting...