吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (1): 288-293.doi: 10.13229/j.cnki.jdxbgxb201701042

• 论文 • 上一篇    下一篇

基于区域划分的声定位算法及精度分析

崔林林, 宋萍, 石庚辰   

  1. 北京理工大学 智能机器人研究所, 北京 100081
  • 收稿日期:2016-03-27 出版日期:2017-01-20 发布日期:2017-01-20
  • 通讯作者: 宋萍(1972-),女,教授,博士.研究方向:传感与测试.E-mail:sping2002@bit.edu.cn
  • 作者简介:崔林林(1986-),男,博士研究生.研究方向:声学定位,无线传感器网络.E-mail:cuilinlinxinxiang@126.com
  • 基金资助:
    国家自然科学基金(61074178).

Acoustic localization algorithm and accuracy analysis based on region division

Cui Lin-lin, Song Ping, SHI Geng-chen   

  1. Intelligent Robotics Institute, Beijing Institute of Technology, Beijing 100081,China
  • Received:2016-03-27 Online:2017-01-20 Published:2017-01-20

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摘要： 针对当前基于TDOA(波达时间差)的空间交汇声定位算法中,在整个定位区域采用单一的定位算法的不足,提出了一种基于区域划分的声定位算法。在定位区域内布设4个六元阵,根据区域误差均值最小的原则,确定基阵的各个参数,并将该区域划分成16个子区域,每个子区域将采取不同的定位算法。以炮竹作为声源,在北京郊区的一块200 m×200 m的定位区域中随机选取3个声源点,每个点重复实验3次,每个点的定位误差均小于1 m。

关键词: 通信技术, 波达时间差, 空间交汇, 区域划分, 六元阵

Abstract: At present, the space intersection acoustic localization algorithm based on Time Difference of Arrival (TDOA) only uses a simplex localization method. We herein propose an acoustic localization algorithm based on region division. In this algorithm, we set four spatial six-element arrays, confirm the array parameters based on the principle of minimizing the mean value of area errors, and then divide such area into 16 sub-regions, to each of which we apply different localization algorithm. With fireworks as the sound source, we randomly selected three sound source points in a plot in suburban of Beijing with area of 200 m × 200 m, and carried out repeated experiments for three times at each point. The localization errors at the three points are all less than 1 m.

Key words: communication, time difference of arrival(TDOA), space intersection, regional division, six-element array

中图分类号: 

  • TN911.72
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