【摘要】 单频GPS精密单点定位的逐次滤波法,将载波相位观测值在相邻历元间求差以消除电离层延迟误差的影响,并辅助伪距观测值进行高精度定位。本文详细分析该方法的随机模型和函数模型,讨论观测值先验方差的确定方法,包括指数函数经验模型、观测残差向量的开窗估计法等,并采用自编软件计算实测数据分析该模型的精度。更多还原

【Abstract】 The function model and statistic model of carrier-based pseudorange filtering was analyzed in this paper in detail.The Exponential empirical function and residual adaptive estimation were used to determine the variance.A testing example calculated by the software developed by the author was used to analyze the accuracy of the proposed model.更多还原