基于坐标修正的改进型三边定位算法

Improved three-edge localization algorithm based on coordinate correction

针对海洋无线传感器网络(Wireless Sensor Network,WSN)节点动态性强、节点运动状态复杂、通信受遮蔽效应较大、信号衰减严重等问题,将传统的WSN三边定位算法应用到海洋环境,提出一种基于坐标修正的改进型三边定位算法.利用EXata平台进行仿真.仿真结果表明,提出的算法具有较高的定位精度和较好的海上动态环境适应性,能提升海上搜救效率.

Marine Wireless Sensor Networks （WSN） are of high dynamic of nodes, complex motion state of nodes, larger sheltered effect of communication, and serious attenuation of signals. In view of this, the three-edge localization algorithm of traditional WSN is applied to marine environment, and an improved three-edge localization algorithm based on coordinate correction is put forward. EXata platform is used to simulate the algorithm. Simulation results show that the proposed algorithm is of higher localization accu-racy and better adaptability for dynamic marine environment, and can improve the efficiency of search and rescue.