一种基于加权处理和误差修正的DV-Hop定位算法研究

针对传统的DV-Hop算法在定位过程中出现的容易引起误差的问题,提出了一种综合考虑所有信标节点的平均跳距并引入权值修正,将信标节点当作未知节点计算误差进而优化精度的距离估计算法,使网络平均跳距和节点位置估计值更加准确。通过相关仿真实验表明:改进算法优化了原算法的定位精度和定位稳定性,达到了预期目标。

A Study of DV-Hop Localization Algorithm Based on Weighted Processing and Error Modification

Aiming at the traditional DV-Hop algorithm easily caused error,the current thesis proposes a comprehensive consideration of all beacon nodes average one-hop distance and introducing weights corrected results.At the same time use beacon nodes as unknown nodes calculating error and use the error optimizing accuracy. Finaly makes the average one-hop distance and node position estimates more accurate.Theoretical analysis and simulation results show that the proposed algorithm has better locating performance in locating precision and precision stability,achieve the expected goal.