摘要
在介绍常用的ZigBee定位算法——接收信号强度指示算法(RSSI)和加权质心定位算法特点的基础上,分析常用算法定位误差产生的原因。针对此,提出改进的RSSI算法——几何测量算法,并将几何算法应用于CC2430无线单片机,对其定位节点进行设计和实现。仿真表明:改进后的算法定位精度提高约3%。
Basing on the ZigBee localization algorithm which boasting of characteristics of RSSI(received signal strength indicator)algorithm and weighted centroid algorithm,the errors of commonly-used algorithms were analyzed to propose an improved RSSI location algorithm,alias the geometric measurement algorithm,and to apply it to CC2430 wireless microcontroller to design its location nodes.The simulation results show that localization accuracy of improved algorithm can be increased by 3% or so.
出处
《化工自动化及仪表》
CAS
2012年第2期204-208,共5页
Control and Instruments in Chemical Industry
