基于相位差的声源定位算法研究及实现

针对目前安防监控系统监控效率低、盲目性大的问题，设计了一种基于相位差（differenceofphase，DOP）的声源定位系统，介绍了系统的组成原理、软硬件电路设计与实现，提出了一种基于DOP的定位算法。该系统以DSP芯片TMS320F28335为核心，以麦克风为声音传感器，以云台为控制对象，实现了一种高效、低成本的嵌入式声源定位系统。实验结果表明，该系统反应快、定位准、可靠性高。

Research and Implementation of Sound Source Localization Based on Difference of Phase

Aiming at making up for the deficiency and blindness of the present monitoring system, this paper creatively pro- posed a novel position scheme based on phase difference to improve sound source localization system and gave a detailed descrip- tion for its composition principle and circuit design as well as implementation. The location system centered with DSP chip TMS320F28335 of TI corporation utilized microphone as sound sensor and PTZ as controlled member to achieve an efficient and low cost embedded sound source location system. Massive experiment statistics confirmed that the system has a prominent im- provement in reaction velocity, position accuracy and reliability.