Abstract
The phase conjugation method has been used for the identification and reconstruction of complex sources. A plate subject to a point force and a pulsating cube are involved to verify the effectiveness of the method. The surface pressure, the surface normal velocity, the radiation power, and the intensity are reconstructed with different phase conjugation arrays. Numerical results show that the best identification results could be achieved by an array made of dipole transceivers based on pressure gradient measurements in the near field. Phase conjugation arrays achieve a very high resolution to identify the surface pressure and normal velocity and reconstruct the radiation power and the intensity very well. The phase conjugation method for identification and localization of the radiated field has advantages of posing no difficulties and using a small number of measurements and it is natural to use patch method. These features may make the phase conjugation method a powerful noise diagnostic tool. For an array in the far field only the location of the maximum pressure response could be identified.
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