NLOS误差模型下的无线传感网定位方法与仿真

摘要

In order to improve the location accuracy in the NLOS environments,and research the characteristics between different NLOS models with different location methods,at first,the NLOS environments are modeling by a variety of different NLOS error models,the mathematical formulas are given.The NLOS error models suitable for WSN are dug out and the NLOS environments are characterized by different NLOS models.Then,the unknown node is located using the traditional location methods.Though the computer simulations using different parameters,experimental simulation results can reflect the performance of various location methods in different NLOS error scene effectively and provide a theoretical basis for the actual location applications in WSN.%为了有效提升在NLOS环境下的定位精度和探讨不同NLOS模型和不同定位方法之间的特性,对多种NLOS误差模型进行建模,并给出模型数学公式,挖掘出适合无线传感网的NLOS误差模型,利用多种不同的NLOS误差模型来表征无线传感网中的非视距传播(NLOS)环境；利用常用经典定位方法对未知节点进行定位.通过对不同参数的设置进行计算机仿真实验,仿真实验数据结果有效地反映出各种定位法在不同NLOS误差场景下的性能,为无线传感网的实际定位应用提供理论基础.