| 一种基于时间反转的无线定位方法 |
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| 引用本文： | 郝明,熊兴中,邱玲.一种基于时间反转的无线定位方法[J].四川理工学院学报(自然科学版),2012,25(6):22-26. |
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| 作者姓名： | 郝明 熊兴中 邱玲 |
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| 作者单位： | 1. 四川理工学院,四川自贡643000 自动化与电子信息学院,四川自贡643000
2. 计算机学院,四川自贡,643000 |
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| 基金项目： | 四川省杰出青年基金项目，四川理工学院人才引进项目 |
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| 摘 要： | 针对传统的蜂窝网无线定位方法受非视距传输、信道噪声、多径干扰等因素的影响,定位精度往往会出现较大偏差的情况,提出了一种基于时间反转的无线定位方法。该方法以不同信道冲激响应的相关函数的脉冲宽度作为位置特征参数,测量移动终端到基站之间的距离,实现对移动终端的定位。实验仿真结果证明,在存在非视距传输、信道噪声、多径干扰的情况下,该方法具有较好的定位效果。
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| 关 键 词： | 无线定位 相关函数 冲激响应 时间反转 |
A Wireless Positioning Method Based on Time-reversal |
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| HAO Minga,XIONG Xing-zhonga,QIU Ling.A Wireless Positioning Method Based on Time-reversal[J].Journal of Sichuan University of Science & Engineering:Natural Science Editton,2012,25(6):22-26. |
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| Authors: | HAO Minga XIONG Xing-zhonga QIU Ling |
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| Institution: | b(a.School of Automation and Electronic Information;b.School of Computer Science,Sichuan University of Science & Engineering,Zigong 643000,China) |
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| Abstract: | Due to the impact of factors like none line-of-sight transmission,interchannel noise and multipath interference,traditional cellular wireless positioning system is hard to get a higher precision.A novel wireless positioning method is proposed based on the time reversal technology.Taking the pulse width of related function of different channel impulse response as position characteristic parameters,the distance between the mobile terminal and base station is measured and then the mobile terminal is exactly located by this method.Experimental simulation shows that under the condition of none line-of-sight transmission,interchannel noise and multipath interference,this wireless positioning has good positioning performance. |
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| Keywords: | wireless location related function impulse response time reversal |
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