The study on the holographic reconstruction and prediction of a semi-free field is valuable for the practical applications of the acoustic holography technique.
半自由声场环境下的声源重建和声场预测研究对声全息技术走向实际应用具有非常重要的意义。
This paper introduces the common methods in identifying vehicle noise, and gives a introduction of the method of acoustic holography which has been extensively applied now.
作者介绍了识别汽车噪声源的常用方法，并对其中得到广泛应用的声全息法进行了较详细的论述。
The distributed source boundary point method(DSBPM) based nearfield acoustic holography(NAH) is used for identifying and localizing noise sources of the roots vacuum pump.
采用基于分布源边界点法的近场声全息技术对运转状态下的罗茨真空泵进行了噪声源识别和定位研究。
Sound field separation technique has been proposed, which overcomes the limitation on applications of near_field acoustic holography (NAH).
提出空间声场分离技术，突破了近场声全息(NAH)的应用局限。
The acoustic holography technique for sound source identification and position by the method of continuously scanning improves the previous acoustic holography experiment.
连续扫描声全息声源识别定位技术是对以往声全息实验方法的改进。
A new method based on interpolation using orthogonal spherical wave source was proposed to enhance the resolution of the nearfield acoustic holography image without adding measurement points.
为了在不增加测量点数的情况下提高近场声全息图像的空间分辨率，提出一种基于正交球面波插值的近场声全息图像分辨率增强方法。
According to the principle of near-field acoustic holography (NAH), the system of data acquisition and analysis needed in holographic experiments have been constructed.
根据近场声全息(NAH)的原理，建立了全息实验所需要的采集、分析系统。
Therefore, there are no problems such as parameters interpolation, singular integration etc. in WSA based acoustic holography, which are inherent to BEM based NAH.
因而，基于波叠加法的声全息就不存在边界面上的参数插值和奇异积分等问题，而这些问题是基于边界元法的声全息所固有的。
Acoustic holography has attained a high lateral resolution but a poor axial resolution.
感音全息摄影技术已经取得了较高的横向分辨率，但轴向分辨率并不理想。
Acoustic holography has attained a high lateral resolution but a poor axial resolution.
感音全息摄影技术已经取得了较高的横向分辨率，但轴向分辨率并不理想。
应用推荐