数据关联的分布式算法  

Distributed Data Association Algorithm

作　　者：蒋立平[1] 谭雪琴[1] 姜萍[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《南京理工大学学报》2010年第2期243-247,共5页Journal of Nanjing University of Science and Technology

摘　　要：为了提高分布式数据关联中的通信效率,该文对其信息传播方法提出改进。首先,将对领域各节点分别传送消息改为广播一个领域各节点共享的信度,改进了信息形式和传播方法,大大减少了通讯量。其次,引入对数运算,解决了数值计算中的稳定性问题。模拟仿真结果表明,该算法节省了能量资源,增加了网络使用寿命,可方便地实现网络规模的可标度化,与理论分析一致。In order to increase the communication efficiency in distributed data association,this paper proposes an improved algorithm on its information propagation method.Based on the distributed calculation,this paper replaces transforming messages to every neighbour node by broadcasting a shared belief,and modifies the means of information expression and propagation,reducing communication volume greatly.The logarithmic operation is introduced during realization and the stability of numerical computing is solved.The simulation results indicate that this algorithm saves energy resources,increases the network＇s using life and implements network size＇s scaling easily.The simulation results are consistent with the theoretical analysis.

关 键 词：无线传感器网络 数据关联 分布式处理 图模型 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]