An acoustic imaging simulation based on microphone array

Based on a brief introduction of microphone array, the overall structure of acoustic imaging system is illustrated in this paper, followed by the description and analysis of the components of this system. After a uniform linear microphone array based on Multiple Signal Classification (MUSIC) algorithm is described and analyzed, the simulation program on the algorithm is developed with MATLAB. The simulation result of the algorithm indicates that: under the condition of same sample numbers, the higher the SNR, the better the image; the similar conclusion can be got under the condition of the same SNR while the sample rate is varied. Such a result is just what we expected.