| 一种基于SVR的定位误差修正算法 |
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| 引用本文： | 郭 建,刘全景,赵志凯.一种基于SVR的定位误差修正算法[J].计算机应用研究,2017,34(8). |
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| 作者姓名： | 郭 建 刘全景 赵志凯 |
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| 作者单位： | 中国矿业大学 信息与电气工程学院,中国矿业大学 信息与电气工程学院,中国矿业大学 信息与电气工程学院 |
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| 基金项目： | 江苏省自然科学基金青年(BK20140216)；中央高校基本科研业务费专项资金项目(2014QNB45)；江苏省博士后科研资助计划项目(1402059C)； |
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| 摘 要： | 针对井下无线信号传播环境发生改变需要重新采集RSS(Received Signal Strength)指纹数据的问题，提出一种基于支持向量回归(SVR)的定位误差修正算法。该算法在离线阶段利用支持向量回归机，建立待训练点的RSS值和定位结果与定位误差之间的非线性关系，在线阶段利用该模型计算RSS样本的定位误差，并修正定位结果。实验结果表明，在离线训练点数量增加前后，该修正算法比指纹匹配算法的定位误差分别减少了22%与38%。
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| 关 键 词： | 无线传播环境 RSS指纹数据 支持向量回归机 定位误差 |
| 收稿时间： | 2016/6/6 0:00:00 |
| 修稿时间： | 2017/4/12 0:00:00 |
A Positioning Error Correction Algorithm Based on SVR |
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| Guo Jian,Liu Quan-jing and Zhao Zhi-kai.A Positioning Error Correction Algorithm Based on SVR[J].Application Research of Computers,2017,34(8). |
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| Authors: | Guo Jian Liu Quan-jing and Zhao Zhi-kai |
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| Affiliation: | School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou Jiangsu,School of Information and Electrical Engineering,China University of Mining and Technology,School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou Jiangsu |
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| Abstract: | According to problem of recollecting received signal strength (RSS) fingerprint data when underground radio environment changed, this paper proposed a positioning error correction algorithm based on support vector regression (SVR). This algorithm used SVR in the offline phase, and established the nonlinear relationship between RSS value of to-be-trained points, positioning results and positioning error. In the online phase, the algorithm used the model to calculate the positioning error of RSS samples and fixed location results. The results show that, before and after the increase in the number of offline training points, the correction algorithm reduces the positioning error by 22% and 38% respectively when compared with the fingerprint matching algorithm. |
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| Keywords: | wireless propagation environment RSS fingerprint data support vector regression positioning error |
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