水声传感器网络节点自适应加权定位算法

Adaptive weighted node localization algorithm for underwater acoustic sensor networks

对水声传感器网络节点定位进行研究,针对水声传感器网络节点间测距精度不高的问题,提出一种水声传感器网络节点自适应加权定位算法。考虑到水声传感器网络节点间的测距误差随着节点间距离的增大而增大,算法改进了锚节点选择机制,并且对不同锚节点在定位测度中的权重进行加权,改进定位测度,提高了测距信息的利用效率。仿真实验表明该算法提高了节点定位精度。

The underwater acoustic sensor network localization technology is researched in this paper. Aiming at the problem of low node location precision, an adaptive weighted node localization algorithm for underwater acoustic sensor networks is proposed. Considering the ranging error of the underwater acoustic sensor network nodes increasing with the increase of the distance between nodes, the algorithm improves the anchor nodal selection mechanism, and weights the different anchor nodes in the location measurement, improves location measure, and increases the utilization. rate of measured information. Simulation experiment results show that this algorithm can improve the localization accuracy.