RTK positioning technique based on carrier phase observations can acquire centimeter level positioning accuracy, while, the key technique is to fast fix ambiguities and compute the ambiguity parameters on kinematic condition. LAMBDA method which fixs ambiguities quickly is adopted to finish initialization, and cycle slip is detected in real time; then, new ambiguities are searched and fixed. A software is programed with C++ to realize this algorithm. By testing the field data, this method and software are verified to fix ambiguities fast and efficiently, thus obtain kinematic positioning results with high accuracy.%基于载波相位观测值的RTK(Real time kinematic)定位技术能够在野外实时得到厘米级定位精度,核心技术是在动态条件下快速固定整周模糊度,解算动态条件下的模糊度参数.采用LAMBDA方法快速固定整周模糊度完成初始化,实时探测周跳,搜索并固定新的模糊度.用C++编制软件实现该算法,通过实测数据的计算,验证文中的方法和软件能够高效快速地固定整周模糊度,从而获得高精度的动态定位结果.
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