| TDOA和广义互相关相混合的无线传感器网络定位技术 |
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| 引用本文： | 孟令军,贾至江,严帅,高世明.TDOA和广义互相关相混合的无线传感器网络定位技术[J].计算机测量与控制,2011,19(7). |
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| 作者姓名： | 孟令军 贾至江 严帅 高世明 |
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| 作者单位： | 中北大学电子测试技术国家重点实验室,山西太原,030051 |
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| 基金项目： | 国家自然科学基金资助(60871041) |
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| 摘 要： | 在无线传感器网络基于定位的算法中,广义互相关算法能精确的计算时延,进而得到精确的距离值,但是计算量太大,极大地影响了无线传感器网络定位的实时性;在基于TDOA的定位算法中,虽然其计算量很小,但定位结果易受到环境的干扰,精度很难得到保证;因此根据这这两种算法的优点提出了一种TDOA和广义互相关相混合的定位算法,实验结果表明,按所需定位距离为30米左右时,改进后的定位算法的计算量较改进之前的减少了近7倍左右,同时还能保证定位结果的精度。
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| 关 键 词： | 无线传感器网络 TDOA 节点定位 广义互相关 |
Location technology of mix of TDOA and Generalized Cross Correlation |
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| Meng Lingjun,Jia Zhijiang,Yan Shuai,Gao Shiming.Location technology of mix of TDOA and Generalized Cross Correlation[J].Computer Measurement & Control,2011,19(7). |
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| Authors: | Meng Lingjun Jia Zhijiang Yan Shuai Gao Shiming |
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| Affiliation: | Meng Lingjun,Jia Zhijiang,Yan Shuai,Gao Shiming(National Key Laboratory For Electronic Measurement Technology,North University of China,Taiyuan 030051,China) |
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| Abstract: | In the range-based algorithm of WSN,Generalized Cross Correlation can get the time precise diatance by calculating the delay accurately,but it has a great impact on the real-time positioning of WSN for it's big computation.The algorithm of TDOA has small computation but it can't get the precise result because the disturb of the noise of environment.So this paper propose a location algorithm of the mix of TDOA and Generalized Cross Correlation according to the excellence of them.The results of the experiment... |
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| Keywords: | WSN TDOA node location generalized cross correlation |
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