无线传感网中目标定位算法切换门限的仿真  

Simulation of Switching Threshold for Target Location Algorithm in WSN

作　　者：吴泽民[1] 张磊[1] 王海[1] 

机构地区：[1]解放军理工大学通信工程学院,南京210007

出　　处：《系统仿真学报》2009年第21期6991-6994,共4页Journal of System Simulation

基　　金：国家自然科学基金(60672080);国家863高技术项目(2008AA01Z216);国家973项目(2009CB3020402)

摘　　要：在分析了传感器网络中现有定位算法的基础上,针对主动定位的多普勒法,提出了基于假设检验的运动性检测算法。该检测的目的是发现多普勒法的失效门限,为定位算法的切换提供依据。经仿真,发现假设检验算法能有效判断被定位目标的低速运动状态,其切换门限在1.5m/s左右,高于该速度门限的目标可以使用多普勒法,否则应该采用静止类定位算法。Based on the analysis of current target localization algorithms for WSN, hypothesis test for target movement status detection algorithm was introduced, which is particular appendix of Doppler active localization algorithm. The aim of this test is to provide localization algorithm switching threshold when Doppler method is no longer valid. Through simulation, this hypothesis test can effectively detect the low speed status of localized target, and the switching threshold speed is about 1.5m/s, target with higher speed can use Doppler algorithm, otherwise only stationary class algorithms can be used.

关 键 词：目标定位 多普勒频率 切换 无线传感网 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]