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- 2016
北斗区域星座对相对定位精度的影响分析
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Abstract:
首先介绍了北斗系统的区域星座特点，然后从相对定位几何精度因子（relative dilution of precision，RDOP）和定位误差两方面进行精度分析，初步得出了北斗相对定位精度与区域星座的关系。理论分析和实验结果都表明，在我国范围内采用北斗卫星导航系统进行短基线相对定位时，其东西方向定位精度优于南北、高程方向；南北方向与高程方向的定位误差呈负相关；北斗相对定位精度随纬度增加而降低；与GPS相比，北斗相对定位在南北方向精度略差；载波相位相对定位精度受北斗区域星座的影响略大于单频伪距差分
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