摘要
针对三边定位算法定位精度不高的问题,提出了一种改进的加权三边定位算法.该算法在参考节点呈正三角形摆放时定位精度最高的理论基础上,将参考节点所围成的三角形的内角和边长信息作为加权因子,引入到三边定位算法中,以此来反映该三角形与正三角形之间的差异.仿真实验结果证明,该改进算法提高了定位的精度.
Aiming at the problem that trilateration localization method has low localization precision, an improved weighted trilateration localization algorithm was proposed. Based on the theory that the equilateral configuration of refer nodes can lead to the highest localization precision, this algorithm brings the interior angles and slide length information of the triangle surrounded by refer nodes to trilateration localization algorithm as weighted factor to reflect the difference between this triangle and equilateral triangle. Experiment simulation results showed that this improved algorithm increased localization precision.
出处
《郑州轻工业学院学报（自然科学版）》
CAS
2012年第3期83-85,共3页
Journal of Zhengzhou University of Light Industry:Natural Science
关键词
无线传感器网络
三边定位
加权因子
三角形质心
wireless sensor network
trilateration localization
weighted factor
triangle centroid
