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针对水声传感器网络中大延迟、低可靠通信约束下的水声信号分布式检测问题,提出了一种基于时间窗口的自适应融合算法.传感器节点依据声纳接收机的特性计算局部判决并发送给融合中心节点.融合中心节点在时间窗口内,基于已收到的局部判决在线自适应地调整融合规则,从而由最优融合算法得到最终判决.通过仿真,讨论了时间窗口的选择问题以及融合算法的性能.仿真结果表明,新算法具有很高的实用性,能够在动态变化的水声通信条件下保证整个系统高效运行.
Aiming at the distributed detection of underwater acoustic signals under the condition of large delay and low reliable communication in underwater acoustic sensor networks, an adaptive fusion algorithm based on time window is proposed. The sensor nodes calculate the local decision according to the characteristics of the sonar receiver and send it To the fusion center node.The fusion center node adaptively adjusts the fusion rules online based on the received partial decisions in the time window to get the final decision by the optimal fusion algorithm.The simulation of the time window selection and the fusion The simulation results show that the new algorithm has high practicability and can ensure the efficient operation of the whole system under the dynamic change of underwater acoustic communication.