The invention discloses a sound identification method based on a cross
acoustic array broadband wave beam formation. The sound identification method comprises steps of using a cross
acoustic array to align with a needed direction to collect acoustic signals, 2, performing pre-
processing on collected sound, 3, performing DFT (
discrete Fourier transform) on processed data of each frame, performing
frequency band extraction according to a needed
frequency band, 4, performing LSMI-MVDR wave beam formation on the needed direction by the extracted
frequency band, 5, performing inverse DFT on a
frequency domain signal after the wave beam is formed, 6, performing frame overlapping synthesis according to the framing principle to output a
signal, and 7, performing characteristic extraction and classification study and identification. The sound identification method based on cross
acoustic array broadband wave beam formation can improve a
signal-to-
noise ratio of the signal received in an expected direction, inhibits interference signals of other directions, can be applied to a
signal processing process of an acoustic
identification system and can effectively improve an
identification rate and reliability of the
identification system on the identification object.