一种基于交点质心求解的RSSI定位算法及其优化

A RSSI Location Algorithm Based on the Centroid of Point of Intersection and Its Optimization

为了提高RSSI算法的定位精度,提出了一种新的基于交点质心求解的RSSI算法.此方法用矩阵求解多组二元二次方程组,得出的结果为这些方程组解的平均值,定位坐标由这些平均值确定.相比于传统最小二乘法,交点质心法的定位精度明显提高,并给出了两种优化方案,最后提出了一种实现三维定位的方法.

To enhance the accuracy,this paper represents a new location method based on RSSI called centroid alculation of point of intersection,which gets the equations＇ mean through solving these equations with matrix,and the location message lies in the mean.Further more,two ways to optimize the centroid calculation are given.Compared with traditional LS algorithm,the location accuracy is highly enhanced.Finally,it gives a method to realize the three-dimension location is proposed.