基于通信基站的三维室内定位matlab
有程序和资料。16年华为杯数学建模C题。问题一，根据给定的10组LOS或NLOS传播环境下从手持终端到基站的TOA测量数据和所有基站的三维坐标，首先，根据每一组的终端与基站之间的TOA，计算出这三十个基站分别与各个终端之间的空间距离。对于每个终端，利用四点定位算法（在三维空间中，至少要采用四个基站才能实现坐标定位），根据所给的多个基站，采用分组定位，然后取均值的方法，可得出较精确的每个终端三维坐标。
问题二，根据题目中给定的10组TOA测量数据和所有基站的三维坐标（对应附录中编号为case011_input.txt到case020_input.txt的文件），首先使用问题一中的模型求解出终端坐标，再根据基站之间的距离进行基站的精简，再通过误差门限值等约束条件来保证精度，保证以尽可能少的基站数目，实现近似最优解的三维定位精度。
问题三，根据给定的5组对处于移动过程中的终端采集到的TOA数据（每组数据只记录一个终端的TOA，并且是这一个终端在运动轨迹中多个位置上的TOA数据）。首先计算出运动轨迹上每个点距离所有基站的距离，然后计算出所有轨迹点的二维坐标，然后通过最小二乘法对运动轨迹曲线进行拟合，计算出运动轨迹。
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