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| 基于CPCRLB和一致性算法的分散式传感器管理 | |
| 引用本文： | 杨小军,梁中华,徐先峰,单博炜,常晓凤.基于CPCRLB和一致性算法的分散式传感器管理[J].信息与控制,2016,45(5):593-599. |
| 作者姓名： | 杨小军 梁中华 徐先峰 单博炜 常晓凤 |
| 作者单位： | 1. 长安大学信息工程学院, 陕西 西安 710064; 2. 长安大学电子与控制工程学院, 陕西 西安 710064 |
| 基金项目： | 国家自然科学基金资助项目（61473047，61271262，61201407）；中央高校基本科研业务费项目（310824162021）；陕西省科学技术研究发展计划资助项目（2015JM6356，2014k-025） |
| 摘 要： | 针对无线传感器网络中的目标跟踪问题，基于条件后验克拉美—罗下界（CPCRLB）提出一种分散式传感器节点管理方法．基于一致性策略给出一种CPCRLB的分布式迭代算法，并且基于分布式粒子滤波器给出该算法的数值逼近实现．对层次结构的无线传感器网络，将CPCRLB作为传感器管理的准则，基于平均一致性给出一种迭代的局部搜索算法，实现了无线传感器网络下观测节点的分散式在线选择．仿真结果表明了基于CPCRLB的分散式传感器管理方法在目标跟踪精度方面的有效性． |
| 关 键 词： | 无线传感器网络 传感器管理 一致性算法 后验克拉美-罗下界 分布式粒子滤波器 |
| 收稿时间： | 2015-06-23 |
Decentralized Sensor Management Based on the CPCRLB and Consensus Algorithm |
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| YANG Xiaojun,LIANG Zhonghua,XU Xianfeng,SHAN Bowei,CHANG Xiaofeng.Decentralized Sensor Management Based on the CPCRLB and Consensus Algorithm[J].Information and Control,2016,45(5):593-599. | |
| Authors: | YANG Xiaojun LIANG Zhonghua XU Xianfeng SHAN Bowei CHANG Xiaofeng |
| Affiliation: | 1. School of Information Engineering, Chang'an University, Xi'an 710064, China; 2. School of Electronic & Control Engineering, Chang'an University, Xi'an 710064, China |
| Abstract: | We present a decentralized sensor node management scheme based on the conditional posterior Cramér-Rao lower bounds（CPCRLB) in order to achieve target tracking in wireless sensor networks（WSNs). We propose a distributed iterative algorithm of the CPCRLB based on the consensus algorithm. The numerical approximation implementation of the proposed algorithm is obtained using distributed particle filter, and the distributed CPCRLB is used as a criterion for the selection of the optimal sensor nodes in the hierarchical WSN. We propose an efficient iterative local search algorithm based on average consensus strategy, which achieves the online decentralized selection of sensor nodes. The simulation results show that the proposed CPCRLB-based decentralized sensor management method can achieve accurate target tracking. |
| Keywords: | wireless sensor networks sensor management consensus algorithm posterior Cramé r-Rao lower bound distributed particle filter |
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