The Modified Green's Function Used for the Phase Conjugation Method to Reconstruct the Sound Source

The identification of the known strength of the point sound source was calculated based on phase conjugation method by the spherical array according to measure the positive sound propagation. The error was obtained by comparison of the identified strength of the point sound source and the known strength and the error was caused by the Green's function of the propagation space. The modified Green's function was get by introducing the correction term. The reconstruction of the sound source was calculated by the phase conjugation formula by the modified Green's function. The numerical simulation results show that this method could realize sound source identification results with high accuracy.