摘要
几何精度因子(GDOP)是卫星导航定位中的精度指标。在GPS/GLONASS组合定位中,一般都会引入考虑系统差异的随机模型,利用传统公式计算的GDOP值不能准确表征组合定位的精度。为此,提出加权GDOP计算方法,并利用实例数据验证了该方法的合理性。
Geometric Dilution of Precision（GDOP） is identified as a positioning precision index of Global Navigation Satellite System（GNSS）.However,the traditional formula of calculating GDOP is not taken account of the stochastic model which is often used in combined GPS/GLONASS positioning.A new formula of calculating GDOP with weighted matrix is proposed in this paper.The result of the field GNSS data shows that the weighted GDOP is more reasonable.
出处
《工程勘察》
2013年第1期61-63,共3页
Geotechnical Investigation & Surveying
基金
中南大学前沿研究计划(2009QZZD002)
中南大学自由探索计划(2L11024)
