| 一种基于RSSI的权重值选择及加权定位算法 |
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| 引用本文： | 杨 萍,李 智.一种基于RSSI的权重值选择及加权定位算法[J].太赫兹科学与电子信息学报,2012,10(2):148-151. |
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| 作者姓名： | 杨 萍 李 智 |
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| 作者单位： | 四川大学 电子信息学院,四川成都,610064 |
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| 摘 要： | 提出了一种基于Wi-Fi网络的接收信号强度指示(RSSI)的权重值选择及加权定位算法。该算法在离线阶段为每个接入点(AP)在每个参考位置点的RSSI设定了变化区间;在定位阶段,将扫描到的每个AP的RSSI落在该区间的所有位置点的权重值加1,然后采用加权算法计算定位目标的估计位置。实验证明,该算法减少了RSSI随机变化引起的定位误差,能获得较好的定位精确度。
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| 关 键 词： | Wi-Fi定位 接收信号强度指示 指纹匹配 权重值选择 加权算法 |
| 收稿时间： | 2011/5/13 0:00:00 |
| 修稿时间： | 2011/6/24 0:00:00 |
Weight-select and weighted location algorithm based on RSSI |
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| YANG Ping and LI Zhi.Weight-select and weighted location algorithm based on RSSI[J].Journal of Terahertz Science and Electronic Information Technology,2012,10(2):148-151. |
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| Authors: | YANG Ping and LI Zhi |
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| Affiliation: | (College of Electronics and Information Engineering,Sichuan University,Chengdu Sichuan 610064,China) |
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| Abstract: | Based on Received Signal Strength Indicator(RSSI) of Wi-Fi network,a weight-select and weighted localization algorithm is presented.It sets a range for the RSSI of each Acess Point(AP) at each reference location in Radio Map.And plus 1 to the weight value of each reference location if the RSSI of the AP scanned is in the range preset,and then calculate the estimated location of the target by using the weighted algorithm.Experimental results confirm that the proposed localization algorithm decreases the location error caused by the random noise of RSSI,and can obtain a more perfect positioning accuracy. |
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| Keywords: | Wi-Fi location Received Signal Strength Indicator fingerprint matching weight-select weighted algorithm |
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