中文摘要：

室内定位技术与服务缺少商业化的成熟技术、更缺乏该方面的商业服务。本文以市售手机作为啁啾信号发射器,在室内布置若干麦克风接收器,采用互相关算法获取到达时间差,形成一种厘米级定位精度的室内定位方案;提出一种基于最远距离的时间到达差定位方法,其中选择最远距离作为基准计算距离差,可明显减小定位误差。理论分析和仿真实验结果表明,本文方法和系统能实现厘米级平面定位精度和亚米级高度定位精度。

英文摘要：

There is not only the lack of the commercial mature technology but also business services in indoor positioning and servicing. In this paper, a mobile phone off the shelf is used as a chirped signal transmitter, several microphone receivers are arranged in the room, the cross-correlation algorithm is used to obtain the arrival time difference, and a kind of indoor positioning scheme with centimeter-level positioning accuracy is formed. A arrival time difference positioning method depending on the farthest distance is proposed, which selects the farthest distance as the baseline to calculate the distance difference and can significantly reduce the positioning error. Theoretical analysis and simulation results show that our method and system can realize the centimeter-level plane positioning accuracy and the sub-meter height positioning accuracy.