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为了进一步完善ZigBee定位技术,减少多径效应对室内定位的影响,在接收信号强度指示算法(RSSI)的基础上,提出了一种自适应动态区域误差因子算法,通过将最小二乘法与自适应动态区域误差因子相结合的方法,来计算盲节点的位置坐标,以达到提高定位精度的效果。Matlab中的仿真结果证明,在节点处于静态和动态两种情况下,该算法在定位精度上都有显著的提升。
In order to further improve the ZigBee positioning technology and reduce the influence of multipath effect on the indoor location, an adaptive dynamic region error factor algorithm is proposed based on RSSI (Received Signal Strength Indication Algorithm). By using the least square method and adaptive Dynamic regional error factor combination method to calculate the location of blind node coordinates in order to achieve the effect of improving the positioning accuracy. The simulation results in Matlab prove that the proposed algorithm has significant improvement in positioning accuracy both in static and dynamic nodes.