Sensor network positioning is a critical technology in the study of sensor networks. Positioning information is an indispensable part of data collected by sensor network nodes. The paper depends on graph rigid theory and combines fuzzy measure degree to analyze sensor network topology and membership coverage degree among sensor nodes, then obtains positioning information of sensor network nodes. After comparison and analysis with triangular positioning algorithm, experiments show that the result from the proposed algorithm is more accurate than that from the traditional triangular positioning algorithm.%传感器网络定位是传感器网络研究的关键技术之一,位置信息是传感器网络节点采集数据中不可缺少的部分.依据图的刚性原理结合模糊测度,对传感器网络的拓扑结构以及传感器节点之间的覆盖隶属度进行分析,得出传感器网络节点的位置信息.通过与三边定位算法进行比较分析,实验证明得出的结果比传统的三边定位算法具有更高精度.
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