摘要
提出一种适用于地下空间室内环境的超宽带(Ultra-wideband,UWB)定位算法。定位标签发射无线信号,传感器接收信号,利用非视距(None Line of Sight,NLOS)状态鉴别的方法对室内信道环境的NLOS进行鉴别,并对各传感器分配权重,最后通过经典到达时间(Time of Arrival,TOA)算法,得到未知节点的位置。通过仿真实验对提出的方法进行验证。实验结果表明该方法可以达到较高的定位精度。
A new class of ultra-wideband （UWB） positioning algorithm is proposed for indoor environments of underground civil air defense project. Wireless signals are distributed by positioning tags and acquired by sensor elements, then NLOS con- dition of indoor channels is identified and weight is distributed to each sensor,location of the unknown node is obtained by the TOA algorithm.The positioning performance of the proposed scheme is tested by simulation experiments and result demonstrated the method achieved preferable positioning precision.
出处
《工业控制计算机》
2014年第1期73-75,78,共4页
Industrial Control Computer
关键词
加权
室内定位
weighed,TOA, UWB,indoor positioning
