山区复杂地形的无线传感器网络节点定位算法

针对在山区地形上非测距三维基于距离向量的定位算法存在定位误差较大的问题，提出了山区复杂地形的无线传感器网络节点定位算法（NLA-MT）.该算法有效地利用了山区地形环境的特点，用局部平面拟合山区地形表面，并将三维空间定位运算降为二维平面的定位运算来进行节点定位，有效提高了节点的定位精度.不同通信半径、不同锚节点比例、不同节点总数的多角度仿真实验结果显示，NLA-MT定位算法在山区地形场景中表现良好，有效提高了无线传感器网络非测距定位算法精度.

Node Localization Algorithm of Wireless Sensor Networks for Complex Terrain in Mountain Areas

Aiming at the problem that the non-ranging three-dimensional distance vector based localization algorithm has a large positioning error in mountainous terrain, a wireless sensor network node localization algorithm (NLA-MT) is proposed. The algorithm effectively utilizes the characteristics of the mountainous terrain environment and uses the local plane to fit the surface of the mountainous terrain. The three-dimensional spatial positioning operation is reduced to a two-dimensional plane positioning operation to perform node positioning, which effectively improves the positioning accuracy of the node. The multi-angle simulation experiments with different communication radius, different anchor node ratios and different total nodes show that the NLA-MT localization algorithm performs well in mountainous terrain scenes. The accuracy of the non-ranging positioning algorithm of the wireless sensor network is effectively improved.