基于模糊理论的三维水下移动节点定位算法  

3D Underwater Mobile Node Localization Algorithm Based on Fuzzy Theory

作　　者：曾福庚 郭新辰 ZENG Fu-geng;GUO Xin-chen(College of Data Science and Information Engineering,Guizhou Minzu University,Guiyang 550025,China;School of Ocean Information Engineering,Hainan Tropical Ocean University,Sanya Hainan 572022,China)

机构地区：[1]贵州民族大学数据科学与信息工程学院,贵阳550025 [2]海南热带海洋学院理学院,海南三亚572022

出　　处：《海南热带海洋学院学报》2019年第5期65-68,共4页Journal of Hainan Tropical Ocean University

基　　金：海南自然科学基金项目(117150);三亚院地合作项目(2015YD14);海南热带海洋学院校级博士科研启动项目(RHDXB201624)

摘　　要：三维水下移动节点定位是水下无线传感器网络的关键技术之一.为进一步提高未知节点的定位精度,利用接收信号强度(RSSI)与节点距离远近的关系,基于模糊理论建立了相应的对应法则,在计算未知节点的位置坐标时使用了最小二乘法.仿真结果表明,与SLMP算法和ASRL算法等移动节点定位算法相比,本方案具有较好的优势.3D underwater mobile node localization is one of the key technologies of underwater wireless sensor networks.In order to further improve the localization accuracy of unknown nodes,by taking advantage of the relationship between the received signal strength ( RSSI ) and the distance of the nodes,the corresponding rules was established based on the fuzzy theory.While calculating the position coordinates of unknown nodes,the least squares method was adopted.The simulation results showed that the current scheme still is superior to other mobile node localization algorithms-such as SLMP algorithm and ASRL algorithm.

关 键 词：水下无线传感器网络 移动节点定位 模糊理论 最小二乘法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]