关键词: 无线传感器网络, 分布式检测, 决策融合, 似然比检验

Abstract: The distributed decision fusion has charming application prospects in the multi-sensor fields especially in wireless sensor networks by right of its reduced cost, increased reliability, increased survivability and reduced communication bandwidth requirement. However, the limited energy, the communication constraint, the fading channel and noise disturbance in wireless sensor networks challenge the theory of distributed decision fusion. It introduces the fundamentals of distributed detection and decision fusion. The theory and the advance of decision fusion in wireless sensor networks are reviewed in detail. The existent problems in this topic are analyzed and the further research directions are discussed

Key words: wireless sensor networks, distributed detection, decision fusion, likelihood-ratio test