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动态环境下的定位是最基本的应用支持技术之一。为适应移动节点所处的邻居信标节点数量的不断变化和复杂电磁环境下对高精度定位的特殊要求,解决在信标节点稀疏情形下的高精度测距定位问题,提出基于次声波和电磁波的非同步TDOA三维测距解析定位及加权辅助定位算法,给出了内插法下的运动轨迹恢复图。仿真表明该算法具有较好的鲁棒性,并实现分米级以下定位精度。
Positioning in a dynamic environment is one of the most basic application support technologies. In order to adapt to the changing of the number of neighbor beacon nodes in which mobile nodes are located and the special requirements for high-precision positioning in complex electromagnetic environment, to solve the problem of high-precision ranging and positioning in the case of sparse beacon nodes, Unsynchronized TDOA three-dimensional ranging analysis and positioning and weighted aided positioning algorithm, given interpolation trajectory recovery map. The simulation shows that the algorithm has good robustness and achieves the positioning accuracy below the decimeter level.