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中文摘要：
为提高北斗伪距单点定位的精度与速度,文章提出了一种基于互差中值理论的加权最小二乘算法。通过北斗实测数据验证：该算法的定位精度较最小二乘算法和直接解算方法的定位精度有较大提高,并能有效地减少问题卫星的影响。该算法对于当前导航定位接收机的改进具有较大的参考价值。
英文摘要：
In order to improve the precision and speed of BDS pseudo-range single point positioning, the paper proposed a Weighted Least Squares algorithm based on Mutual Difference median theory. It was proved by the measured BDS data that the positioning precision of the proposed algorithm would be much higher than that of least squares positioning algorithm and that of direct calculation positioning algorithm, and the algorithm could efficiently reduce the influence of satellites whose integrity are poor. This algorithm would provide a reference for improving the current navigation and positioning receivers,
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