电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
13期
61-64
,共4页
无线传感器网络%节点定位%到达角%估计位置过滤
無線傳感器網絡%節點定位%到達角%估計位置過濾
무선전감기망락%절점정위%도체각%고계위치과려
wireless sensor network%node localization%angle of arrival%estimated location filter
基于信号到达角度(AOA)的定位算法是一种常见的无线传感器网络节点自定位算法,算法通信开销低,定位精度较高。由于各种原因,估测的多个节点位置可能存在不可靠位置.提出了一种改进的基于信号到达角的定位方法,通过过滤误差较大的估计位置,来提高定位的精度。仿真结果表明,本文提出的改进算法很好地提高了定位精度。
基于信號到達角度(AOA)的定位算法是一種常見的無線傳感器網絡節點自定位算法,算法通信開銷低,定位精度較高。由于各種原因,估測的多箇節點位置可能存在不可靠位置.提齣瞭一種改進的基于信號到達角的定位方法,通過過濾誤差較大的估計位置,來提高定位的精度。倣真結果錶明,本文提齣的改進算法很好地提高瞭定位精度。
기우신호도체각도(AOA)적정위산법시일충상견적무선전감기망락절점자정위산법,산법통신개소저,정위정도교고。유우각충원인,고측적다개절점위치가능존재불가고위치.제출료일충개진적기우신호도체각적정위방법,통과과려오차교대적고계위치,래제고정위적정도。방진결과표명,본문제출적개진산법흔호지제고료정위정도。
AOA is a typical way for the nodes self-localization in WSN.It can reduce the spending of communication and also achieve high location precision.For the estimated location,there maybe unreliable locations due to many reasons. An improved localization algorithm in wireless sensor networks based on angle of arrival is proposed. It can improve the location accuracy by filtering the unrelllable location. It is shown by the experiments that the improved algorithm proposed in this paper has high localization precision.