This paper proposed a distributed target detection algorithm （DTDA） for radia- tion surveillance using wireless sensor networks. Based on the data fusion theory, the DTDA adopts a structure of three levels. Each sensor not only uses its own measurement,but also makes full use of its neighboring sensors to make a cluster-level decision. The fusion center of the sensor network will make a whole network-level decision based on the cluster-level decisions, which arc transmitted to the fusion center by wireless communication. We evalu- ate the per...
