基于星形结构分布式检测的分析与设计

The Analysis and Design of Distributed Detection Based on Star Configurations

本文在假定融合规则为奈曼—皮尔逊(N-P)准则的前提下,对星形结构的分布式检测进行了系统分析,给出了为获得全局最优条件下的局部检测和局部融合规则。在假定接收处理采用恒虚警(CFAR)结构的前提下提出了各检测门限的计算方法。计算实例表明在最优分布式设计下其性能接近无通信带宽约束的中心化检测性能。该文的分析对于点或小区域防御系统的实现具有重要参考价值。

In this paper, the distributed detection problem for sensors with star configuration is systematically investigated under the assumption that the fusion rule is based on Neyman-Pearson (N-P)criterion.then the local decision and local fusion rules is given in order to obtain global opti mization. The computational method of the thresholds is presented for the case where the constant alarm false rate processors are used in each sensor. Finally some calculation examples provided demonstrate that the performance of the optimal distributed detection approaches to the one of central detection under unconstrained communication bandwidth. The results given in this paper are of important significance for the point or small area multisensor defence system.