中文摘要：

基于相位共轭方法采用数值方法对平板辐射声场进行识别和重构,采用不同的阵列形式重构了平板的法向速度,辐射声功率以及声强。数值计算结果表明：在近场基于声压梯度测量使用偶极子源的平面相位共轭阵列形式对声场重构的效果最好,并能准确识别平板的法向速度,辐射声功率以及声强。相位共轭方法具有测点少,可自然使用局部重建方法,不存在解不稳定问题等优点,具有很好的应用前景。

英文摘要：

The phase conjugation method is used for identification of the plate acoustic radiation field.Adopting a different matrix type,their re-build it＇ s normal speed、radiation sound pressure and strength.Numerical results show that the best identification results can be achieved by the array made of dipole transceivers based on sound-pressure gradient measurement in the near field.The phase conjugation method for identification and localization of the radiation field has advantages of less measurement points,solution stability,and the natural use of patch method.Thus,it may become an useful tool for noise diagnosis.