基于跳距内双误差修正的改进质心定位算法研究

Improved centroid based on hopdistance double error correction algorithm

无线传感器网络(WSN)定位技术是当前研究的热点,针对传统质心法定位精度差的特点,提出一种新的传感器网络节点定位算法—ICHDE算法。均匀分布在探测区域内的传感器网络锚节点发送无线信号,其它位置未知的传感器节点在感知范围内接收锚节点无线信息,并应用改进的"误差修正质心"算法计算出本节点相应坐标,从而实现节点定位。仿真实验验证了本算法有效性,表明该算法定位准确、定位覆盖率高。

A new node localization algorithm in WSN was proposed-Improved Centroid based on Hop distance Error localization algorithm（ICHDE）. The Anchor Points uniformly distributed within the WSN detection area and broadcast the beacons. Each unknown node in the field passively receives the beacons within its sensing range,uses the Error Correction localization Estimation algorithm to estimate its location. Simulation results show the algorithm is efficient,high covered and it is useful for the large scale sensor networks.