Abstract:Phased microphone array is an acoustic measurement technique developed in the past ten years, which aims to recognize and localize the noise sources precisely, reconstruct the frequency, position and amplitude of each source. It have quickly developed and widely used at abroad, but is still in initial stage at home. A set of data post-processing algorithm procedure is developed, which is the dominant element of phased microphone array technique, and some numerical simulation studies are carried out. The results show that, this algorithm procedure can recognize and localize the source information rather accurately, which is a foundation for further experiment study and engineering application in future.