| 基于无线传感器网络的极大似然定位法的分析 |
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| 引用本文： | 徐原博,钟丽鸿,崔洋,何丽莉,曹英辉,胡成全. 基于无线传感器网络的极大似然定位法的分析[J]. 传感器与微系统, 2011, 30(10): 37-40,43 |
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| 作者姓名： | 徐原博 钟丽鸿 崔洋 何丽莉 曹英辉 胡成全 |
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| 作者单位： | 吉林大学计算机科学与技术学院,吉林长春l30012 |
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| 基金项目： | 吉林省科技发展计划重点资助项目(20090425) |
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| 摘 要： | 对现在普遍应用的极大似然估计定位方法进行了分析,发现极大似然估计法参考方程(第n个方程)的锚节点(参照锚节点)测距误差和参照锚节点在定位区域内的位置对定位误差有重要影响:参照锚节点的测距误差越小,计算得到的定位精度越高；当所有方程所含误差相同时,参照锚节点在定位区域中心时定位误差小,在定位区域边缘时定位误差大；当参照锚...
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| 关 键 词： | 无线传感器网络 节点定位 极大似然估计法 最小二乘法 参照锚节点 |
Analysis on node localization method using maximum likelihood estimation based on wireless sensor networks |
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| XU Yuan-bo,ZHONG Li-hong,CUI Yang,HE Li-li,CAO Ying-hui,HU Cheng-quan. Analysis on node localization method using maximum likelihood estimation based on wireless sensor networks[J]. Transducer and Microsystem Technology, 2011, 30(10): 37-40,43 |
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| Authors: | XU Yuan-bo ZHONG Li-hong CUI Yang HE Li-li CAO Ying-hui HU Cheng-quan |
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| Affiliation: | XU Yuan-bo,ZHONG Li-hong,CUI Yang,HE Li-li,CAO Ying-hui,HU Cheng-quan(School of Computer Science and Technology,Jilin University,Changchun 130012,China) |
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| Abstract: | Maximum likelihood estimation method which is now widely used is analyzed through some experiments.The results show that the ranging error and the position of the anchor node,which is called reference node,contained in the reference equation(the n th equation)have significant impact on the node localization with Maximum likelihood estimation method:the smaller the ranging error of the reference node is,the more accurate the node localization will be.When all the equations have the same ranging error in this... |
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| Keywords: | WSNs node localization maximum likelihood estimation method least square method reference node |
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