摘要
本文利用RSSI测距成本较低和加权质心定位算法简单的优点,提出了一种平面拟合的定位算法。在三维空间中当节点的高度起伏不大时,先运用加权质心算法计算出估计点的位置,再对未知节点通信半径内的信标节点进行平面拟合,并将估计点的坐标向拟合平面进行投影,刷新估计点坐标。实验表明,该算法提高了定位精度。
The paper presents a plane fitting localization algorithm by taking the advantages of the lower cost RSSI ranging and the simple weighted centroid localization algorithm. In three dimensional space,in case of little difference of nodes height,we firstly calculate the position of the estimated point by the weighted centroid algorithm,and then project the estimated point to the fitting plane projection and refresh the coordinates of the estimated point.The experimental results show that the algorithm improves the localization precision.
出处
《科技广场》
2016年第4期73-76,共4页
Science Mosaic
关键词
节点定位
加权质心
平面拟合
平面投影
Node Localization
Weighted Centroid
Plane Fitting
Planar Projection
