基于TDOA定位的基站布设对模糊区分布及定位精度的影响分析

摘要

针对基于TDOA的定位基站布设问题,分析了算法产生模糊解的原因,并就定位基站布设对模糊区域面积的大小和分布进行了定性的分析.此外,通过对TDOA的定位方程进行微分运算求解出影响定位精度的具体变量,并分析了当变量改变时定位精度的变化.最后,通过仿真分析验证了合理的基站布局能够提高定位精度这一结论的正确性.%The location of the base station deployment problem is studied based on the TDOA.The reason of the fuzzy solution is analyzed.The influence of base station layout on size and distribution of the fuzzy area are analyzed qualitatively.In addition,the differential operation is performed with the TDOA positioning equation to obtain the specific variables that affect the positioning accuracy.The change of the positioning accuracy is analyzed when the variables change.The research can provide a theoretical guidance for the layout of the base station and improve the positioning accuracy.Finally, the correctness of the conclusion is verified by simulation analysis.