计算机技术与发展Issue(6)：250-253,4.DOI:10.3969/j.issn.1673-629X.2014.06.063
基于TDOA的室内超声波定位方法的改进
Improved Indoor Location Method for Ultrasonic System Based on TDOA
摘要
Abstract
The wireless sensor network positioning systems based on ultrasonic and RF of TDOA are widely being researched. It calculates blind node coordinates on the basis of distance measurement. Ranging errors affect the accuracy of positioning results. In this paper,the aim is to introduce the working principle of positioning system based on supersonic and radio technology,the linear fitting method of total least square is used for error compensation of distance measurement,which can obtain the distance correction values,and then the min-max algorithm is used to compute the location coordinates,acquiring the result with low measure error and high location accuracy. Experi-ment results show that this method makes the system achieve high precision of distance measurement and high positioning accuracy.关键词
到达时间差/室内定位/超声波/距离测量Key words
time difference of arrival/indoor location/ultrasonic/distance measurement分类
信息技术与安全科学引用本文复制引用
王凡,彭勇..基于TDOA的室内超声波定位方法的改进[J].计算机技术与发展,2014,(6):250-253,4.基金项目
江苏省交通运输厅资助项目(2012X08-2) （2012X08-2）
