| 基于DV-Hop定位算法的改进研究 |
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| 引用本文： | 张万礼,杨小莹,龚振龙,罗浩.基于DV-Hop定位算法的改进研究[J].宿州学院学报,2013(11):78-81. |
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| 作者姓名： | 张万礼 杨小莹 龚振龙 罗浩 |
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| 作者单位： | [1]宿州学院信息工程学院,安徽宿州234000 [2]宿州供电局运检部,安徽宿州234000 |
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| 基金项目： | 安徽省高校优秀青年人才基金重点项目“基于量子遗传粒子滤波的WSN目标跟踪算法研究”（2012SQRL199ZD）;宿州学院开放课题平台“基于双层预测机制的传感器网络目标跟踪算法”（2012YKF38）;大学生科研项目“声敏传感器的改进及在报警器中的应用”（KYLXLKZD13-18）. |
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| 摘 要： | 针对DV—Hop定位算法，利用最近一个信标节点估计的平均跳距来计算未知节点坐标，降低了定位精度。提出了改进算法，首先对每个信标节点的平均跳距误差进行加权处理，然后用加权处理后的平均跳距误差修正全网平均每跳距离，从而更逼近实际距离，最后用总体最小二乘法计算未知节点的坐标。通过仿真实验，证明本文算法的定位精度得到了有效提高。
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| 关 键 词： | DV-Hop算法 平均每跳距离误差 总体最小二乘法 定位误差 |
Improved Research Based on DV-Hop Localization Algorithm |
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| Institution: | ZHANG Wan-li1, YANG Xiao-ying1, GONG Zhen-long2 1. College of Information Engineering,Suzhou University,Suzhou,234000; 2. Ministry of Transport Inspection ,Suzhou Power Supply Bureau, Suzhou, 234000, China |
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| Abstract: | DV-Hop localization algorithm uses the most recent beacon node estimates the average hop distance to calculate the coordinates of the unknown node, thereby reducing the positioning accuracy. To solve this problem, an improved algorithm was proposed in this paper. First,calculate the average o each beacon node hop distance error,its weighting, and then treated with a weighted average of the whole network hop distance error correction average hop distance, and thus more approaching the actual distance. Finally, to further improve the positioning accuracy,using total least squares method to calculate the coordinates of the unknown node. Finally, the simulation results show that the proposed algorithm accuracy is improved effectively. |
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| Keywords: | DV-Hop algorithm average hop distance error total least squares method positioning error |
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