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总览 评价 罗应婷 , 朱允民 * ( 四川大学数学学院,成都 610064; ) 摘要: 由于无线通讯的带宽限制,传感器会间歇地向融合中心发送数据。本文指出过去文献中间歇通讯时的分布式融合算法可以推广到传感器噪声相关的情况中去。和传统的分布式算法相比,无
罗应婷, 朱允民*
(
四川大学数学学院,成都 610064; )
摘要:
由于无线通讯的带宽限制,传感器会间歇地向融合中心发送数据。本文指出过去文献中间歇通讯时的分布式融合算法可以推广到传感器噪声相关的情况中去。和传统的分布式算法相比,无论通讯的间歇周期多长,只要是同步间歇通讯,新算法都是全局最优的。
关键词:
信号与信息处理;估计融合;分布式融合;丢包;间歇通讯
Luo Yingting1,, Zhu Yunmin2,*
(
1、College of Mathematics,Sichuan University,ChengDu 610064; 2、College of Mathematics, Sichuan University, ChengDu 610064; )
Abstract:
Due to power and bandwidth limitationin wireless sensor network, thesensor communications to a fusion center are often intermittent. In this article, we point out that the distributed estimation fusion algorithm can be used in the discrete time linear dynamic system even if the sensor noises are cross-correlated.Compared with existing distributed fusion algorithms, the biggest advantage of this distributed fusion algorithm can be globally optimal no matter how long is the intermittent communicationperiod provided that the intermittent communications are synchronous.
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