| 基于在线校正的无线传感器网络定位算法 |
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| 引用本文： | 黄晓利,王福豹,段渭军,王洪斌.基于在线校正的无线传感器网络定位算法[J].计算机工程与应用,2008,44(6):133-135. |
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| 作者姓名： | 黄晓利 王福豹 段渭军 王洪斌 |
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| 作者单位： | 1. 西北工业大学宽带网络技术研究所,西安,710072
2. 哈尔滨理工大学计算机科学与技术学院,哈尔滨,150080 |
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| 基金项目： | 国家自然科学基金(the National Natural Science Foundation of Chinaunder Grant No.60472074)。 |
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| 摘 要： | 准确度和精确度是无线传感器网络定位系统重要的指标。分析现有的校正技术,在基于超声波传感器和无线射频模块的到达时间差(TDOA)测距技术和多边测量定位算法的基础上,结合校正技术,提出一种基于在线校正的定位算法。改进的算法针对传感器网络在实际应用中的不均匀性布撒,充分利用密集布撒下节点定位的冗余信息,以提高密集型网络的定位精度,从而提高整个网络的定位性能。实验表明,改进的定位算法有效地减小了网络的定位误差。
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| 关 键 词： | 无线传感器网络 自身定位 在线校正 多边测量法 最小二乘回归 |
| 文章编号： | 1002-8331（2008）06-0133-03 |
| 收稿时间： | 2007-08-13 |
| 修稿时间： | 2007-12-03 |
Self-localization algorithm based on on-line calibration for wireless sensor networks |
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| HUANG Xiao-li,WANG Fu-bao,DUAN Wei-jun,WANG Hong-bin.Self-localization algorithm based on on-line calibration for wireless sensor networks[J].Computer Engineering and Applications,2008,44(6):133-135. |
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| Authors: | HUANG Xiao-li WANG Fu-bao DUAN Wei-jun WANG Hong-bin |
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| Affiliation: | 1.Institute of Broadband Network，Northwestern Polytechnical University，Xi’an 710072，China 2.College of Computer Science and Technology，Harbin University of Science and Technology，Harbin 150080，China |
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| Abstract: | Accuracy and precision are importance parameters of self-localization systems and algorithms for wireless sensor networks.Based on the analysis of existed calibrations,Time Difference Of Arrival(TDOA) ranging of ultrasonic sensor and RF module and multilateration are used,a self-localization algorithm based on on-line calibration is presented to improve localization performance.Wireless sensor networks is generally indeterminacy deployed,and a densely deployed network provides sufficient amount of data redundancy,which is the basis of the proposed algorithm.Test shows that by applying the proposed algorithm,the error affection of localization is reduced efficiently. |
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| Keywords: | Wireless Sensor Networks(WSN) self-localization on-line calibration multilateration Least Square Regression(LSR) |
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