一种降低定位误差的无线传感器网络节点定位改进算法

An improved positioning algorithm with reduced node location error for wireless sensor network

本文针对无线传感器网络节点的定位精度问题，提出了一种采用误差修正的方法来降低累积距离误差和定位误差的传感器网络节点定位改进算法，给出了该算法的基本原理与实现方法。该算法在不增加原算法通信量及计算复杂度的基础上提高了定位精度。仿真结果显示，在同等条件下，本文提出的算法定位精度提高了5～10％。

Aiming at the enhanced positioning accuracy of wireless sensor network node location, an improved positioning algorithm which uses a differential error correction scheme that is designed to reduce cumulative distance error and node location error accumulated over the multiple hops is proposed in this paper, together with its basic principle and realization issues. The proposed method can improve location accuracy without increasing communication traffic and computing complexity. Simulation shows that under the same conditions, the proposed algorithm can increase location accuracy by 5-10 %.