According to DV-Hop localization algorithm's deficiencies, put forward an inproved algorithm based on average hop distance and estimate of distance in order to enhance the accuracy of DV-Hop algorithm in the irregular network. In this improved algorithm, it considered the feature of coincidence or part of the overlap which existed in the path from unknown nodes to beacon nodes and the path between the beacon nodes, it improved average hop distance and used the error to correct distance. Results of the simulation show that the improved algorithm has a better performance than the original algorithm in positioning accuracy at the irregular network environment.%为了提高DV-Hop定位算法在不规则网络中的精确度,针对该算法的不足之处,提出了一种基于平均跳距和估计距离的改进的DV-Hop算法.该算法考虑了未知节点到参考节点的路径与参考节点间的路径可能存在重合或部分重合这一特性,对平均跳距进行修改,并利用误差对距离进行修正.仿真实验结果表明,在不规则网络环境下,改进算法的定位精度得到明显提高.
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