载波相位模糊度固定是载波相位高精度定位技术中的关键问题。针对动态遮挡环境下载波相位模糊度固定成功率不高的问题,提出了一种利用已知基线长度作为约束条件,提高模糊度固定成功率的算法,仿真结果表明,在城市遮挡严重路段,模糊度固定成功率可从75.3%提高到89.0%,1.462 m 基线长度条件下,定位误差标准差小于1 cm.%Ambiguity resolution is the key problem in high-precision positioning technol-ogy.For the problem of low success rate of ambiguity resolution in challenged environment, a modified ambiguity resolution algorithm is proposed.The algorithm is able to increase the success rate of ambiguity resolution by using baseline length constraint.The simulation re-sults show that the success rate can be increased from 75.3% to 89% in some challenge envi-ronment,and the positioning error is less than 1cm under the condition of 1.462m baseline.
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