One Acoustic Localization Algorithm with Four-Element Array Based on Region Division
At present, the space intersection acoustic localization algorithm based on TDOA only uses a simplex localization method. However, it is found that the localization errors near the area of the line connecting the two arrays' centers are more than the other regions. We herein propose the acoustic localization algorithm based on the region division. In such algorithm, we set four spatial four-element arrays, confirm the array aperture, relative elevation, boundary and distance between arrays based on the size of the localization area and the principle of minimizing the mean value of area errors, and then divide the area into 16 sub-regions to each of which we apply different pair of the arrays. With crackers as the sound sources, we randomly selected three sound source points with the size of 200 m × 200 m in Beijing suburb, China and made repeated experiments for three times at each point. The experiment results indicate that the localization errors of each point are all less than 0.5 m.
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Document Type: Short Communication
Publication date: September 1, 2017
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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