摘要
目前无线传感器网络三维空间定位算法在参考节点数量较少时,存在定位精度低、计算复杂等问题,为此,提出了一种改进的基于RSSI(Received Signal Strength Indication)测距的三维修正定位算法,利用差分修正、迭代次数、加权算法等环节对定位结果进行不断修正,并通过matlab仿真进行验证。仿真结果表明改进算法的定位精度有明显提高。
An improved indoor three-dimensional(3D)calibrating location algorithm based on the RSSI(Received Signal Strength Indicator)ranging mode is proposed to solve the problems such as low positioning accuracy and complex calculation in the current 3D location algorithms when the quantity of the reference nodes in wireless sensor networks is small.With the proposed method,positioning results are continuously calibrated using difference correction,iteration times,weighting algorithm and other links and verified by the Matlab simulation.The simulation results show that the positioning precision is obviously improved.
作者
徐进
李时铭
谢建中
杨栋梁
张丙钊
Xu Jin;Li Shiming;Xie Jianzhong;Yang Dongliang;Zhang Bingzhao(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)
出处
《船电技术》
2021年第3期31-34,共4页
Marine Electric & Electronic Engineering
