无线传感器网络中一种改进的三点定位算法

Modified Three-Point Positioning Algorithm in Wireless Sensor Networks

无线传感器网络作为一种全新的信息获取和处理技术,广泛应用于军事、医疗、环境监测等领域,而定位是这些应用的前提和基础。因此,针对无线传感器网络节点自身定位技术的研究具有重要的理论和实际意义。为了有效地利用信标节点和提高定位精度,在研究三点定位算法的基础上,提出了改进的三点定位算法。理论分析表明,改进的三点定位算法进一步有效利用了信标节点,提高了节点定位精度。仿真实验结果显示,与三点定位算法相比,改进的三点定位算法减少了定位误差。

As a completely new information acquisition and processing technology,wireless sensor networks are widely used in military,medical,environmental monitoring and other fields,and location positioning is the premise and foundation of these applications.Therefore,it is of great theoretical and practical significance to study the self-localization technology of wireless sensor network nodes.In order to effectively utilize beacon nodes and improve positioning accuracy,the modified three-point positioning algorithm is proposed based on the study of three-point positioning algorithm.Theoretical analysis indicates that the modified three-point positioning algorithm can further utilize beacon nodes effectively and improve the positioning accuracy of nodes.Simulation results show that as compared with the traditional three-point positioning algorithm,the modified three-point positioning algorithm could reduce the positioning error.