首页 | 本学科首页   官方微博 | 高级检索  
     

基于手机的声学超宽带室内定位
引用本文:雷旭东,禹 健. 基于手机的声学超宽带室内定位[J]. 国际商务研究, 2016, 56(4)
作者姓名:雷旭东  禹 健
作者单位:中北大学 计算机与控制工程学院,太原 030051;中北大学 计算机与控制工程学院,太原 030051
摘    要:针对室内定位技术部署复杂、成本高的问题,提出了一种利用手机接收声学信号通过脉冲压缩进行室内定位的方法。通过借鉴雷达系统中的脉冲压缩技术,将信号和噪声分离,并提取出信号到达时延估计。为了减小定位误差,研究了手机的声学特性,设计了声学超宽带信号的信道模型,将应答节点时延回传,进一步减小信号传播的时延估计。在停车场的试验结果表明:定位结果和实际位置相符,平均定位误差在30 cm以内。

关 键 词:超宽带;室内定位;脉冲压缩;延时估计;信道模型;匹配滤波

Ultra-wideband indoor acoustic positioning based on mobile phone
LEI Xudong and YU Jian. Ultra-wideband indoor acoustic positioning based on mobile phone[J]. International Business Research, 2016, 56(4)
Authors:LEI Xudong and YU Jian
Abstract:In view of the problem of high cost and complex deployment in indoor positioning technology,an indoor positioning method is presented which uses a mobile phone to receive acoustic signal by pulse compression. According to the pulse compression technology in radar system,signal and noise is separated,and the signal arrival time delay estimation is extracted. In order to reduce the positioning error,the acoustic channel model of ultra-wideband(UWB)signal is designed according to the acoustic features of mobile phone,and node time delay is feedback to further reduce the signal propagation time delay estimation. The test in parking lots show that the positioning result is consistent with actual position and the average positioning error is within 30 cm.
Keywords:ultra-wideband  indoor positioning  pulse compression  delay estimation  channel model  matching filtering
点击此处可从《国际商务研究》浏览原始摘要信息
点击此处可从《国际商务研究》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号