动态系统的纵向平滑器及其在GPS数据处理中的应用

The Longitudinal Smoother of Dynamic System and Its Applications in GPS Data Processing

许多诸如组合导航等动态系统大都存在冗余的观测信息，本文将带有冗余信息的动态系统的参数估计看成是纵向平滑问题。首先介绍了纵向平滑器的基本形式及推算公式，以ＧＰＳ动态定位为例，分析了纵向平滑器的特性。纵向平滑器在多传感器的导航信息处理、系统可靠性分析。

Many dynamic systems such as integrated navigation system possesse execssive observations. The parameter estimations of these systems must be smoothed longitudinally. In this paper, the models and algorithm of longitudinal smoother are presented and its characteristics analysed, taking the GPS positioning as an example. The longitudinal smoother has wide applications in navigation data processing,system reliability analysing and error detecting.