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基于RSSI的矿井移动目标加权质心定位算法

YI Ji,ZHANG Nan

Shanxi Coal（2022）

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Abstract
基于接收信号强度(RSSI)定位技术,通过优化质心定位算法和权值因子来提高煤矿井下移动目标的定位精度.该方法将接收到的RSSI值进行高斯混合滤波,利用最大期望算法(EM算法)对数据进行聚类分析,然后根据赤池信息量准则(AIC)选取AIC值最小的分布模型作为算法计算模型,最后将加权质心算法引入幂值求得定位坐标;用CC2530传感器节点作为通信节点进行实验验证.实验证明,优化后的加权质心算法的定位误差较小.
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Key words
moving target localization in mines,RSSI ranging,weighted centroid algorithm,weight correction,positioning accuracy
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