近场声全息技术的发展

Development of Near-Field Acoustic Holography

近场声全息技术在中低频段可以用来准确的识别噪声源。文章回顾了近场声全息技术的发展过程,并对近场声全息技术在自由场和非自由场中的应用分别进行了较为详细的阐述。近场声全息技术在非自由场中的应用存在的难题是目前导致其发展缓慢的原因。通过回顾,对近场声全息技术的发展提出了展望,波束形成算法和近场声全息技术的联合应用是近场声全息算法的未来发展方向。

It could accurately identify sources in the low and medium frequency bands by using the near-field acoustic holography. In this paper, the development process of near-field acoustic holography technology is reviewed, and the applications of near-field acoustic holography in free-field and non-free-field are described in detail. Through review, the development of near-field acoustic holography technology is proposed. The joint application of beamforming algorithm and near-field acoustic holography is the future development direction of near-field acoustic holography.