Abstract: The phase conjugation method has been used for the identification and reconstruction of the complex sources. A plate subject to point force is involved to verify the effectiveness of the method. Numerical results show that the best identification results could be achieved by the array made of dipole transceivers based on pressure gradient measurement in the near field. The phase conjugation method for identification and localization of the radiated field has advantages of no ill-posedness difficulty and using a small number of measurements and is natural to use patch method. These features may make the phase conjugation method a powerful noise diagnostic tool.

Key words: phase conjugation method, plate, radiation, identification

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。

关键词: 相位共轭方法, 平板, 辐射声场, 重构