摘要： 针对传统最小二乘法定位精度的不足，将工程控制优化中常用的变尺度法(DFP算法)应用到无线传感器网络定位问题中。该算法避免了计算二阶导数矩阵及其求逆计算，特别是对高维问题具有一定的优越性，从而实现对节点定位的优化计算。仿真实验结果表明，该算法能有效提高节点定位精度。

关键词: 无线传感器网络, 节点定位, 变尺度法

Abstract: Aiming at the lack of accuracy in the traditional localization method of least-square, the DFP algorithm is adopted in this paper to solve the Wireless Sensor Networks(WSN) localization problem. The algorithm avoids the calculation of a second derivative matrix and its inverse, especially for high-dimensional problems and achieves the optimization result of nodes localization. Simulation experimental result shows the algorithm can effectively increase the node positioning accuracy.

Key words: Wireless Sensor Networks(WSN), node localization, DFP algorithm

中图分类号: 

• TP393