基于北斗动动精密相对定位的模糊度解算方法

摘要

The kinematic‐to‐kinematic relative positioning technology can provide the real time pre‐cious relative position between moving base stations and rover stations .The model of BDS kinematic‐kinematic differential relative positioning is analyzed and the principal method of fixing the kinematic ambiguities is discussed .The TCAR method of short‐baseline is put forward in fixing the kinematic ambiguities for BDS three‐frequency signals .Short baseline vehicle‐mounted test is carried out and the results show that the method is valid and the accuracy is at cm level when the ambiguityis fixed suc‐cessfully .%模糊度解算方法是 GNSS 动动定位的关键技术，传统模糊度解算方法只针对单频或双频信号进行处理，为此分析了北斗动动差分相对定位模型，并阐述了动态模糊度解算的一般方法，在此基础上提出了一种短基线北斗三频 TCAR 方法求解动态模糊度，即首先求解出三个线性无关的线性组合的模糊度，然后恢复原始频率观测值的模糊度。短基线车载动动测试结果表明：该北斗三频模糊度解算方法是有效的，模糊度正确固定后基线解算精度为 cm 级。