宇航学报

宇航学报 ›› 2016, Vol. 37 ›› Issue (5): 570-575.doi: 10.3873/j.issn.1000-1328.2016.05.009

• 制导、导航与控制 • 上一篇    下一篇

星载GPS数据质量控制方法研究

汪捷, 左翔, 李厚朴, 徐冠楠   

  1. 1.海军工程大学导航系,武汉430033; 2.武汉大学测绘学院，武汉430079
  • 收稿日期:2015-07-08 修回日期:2015-09-14 出版日期:2016-05-15 发布日期:2016-05-25
  • 基金资助:

    装备预研基金项目（9140A24020713JB11342）；装备十二五预研项目（51324040103）

Study on Quality Control Method for Spaceborne GPS Data

WANG Jie, ZUO Xiang, LI Hou pu, XU Guan nan   

  1. 1. Navigation Department, Navy University of Engineering, Wuhan 430033, China;
    2. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China
  • Received:2015-07-08 Revised:2015-09-14 Online:2016-05-15 Published:2016-05-25

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摘要：

针对星载全球定位系统（GPS）数据的特点，分别从阈值设置和周跳检验量的角度对TurboEdit方法进行改进，并在传统抗差估计方法的基础上，提出一种改进的抗差估计策略。利用GRACE卫星的星载GPS观测数据对本文的质量控制方法进行分析验证，结果表明：改进的质量控制方法能明显增强周跳探测性能，有效抑制小周跳和粗差的影响，提高几何法定轨的精度和可靠性。

关键词: 星载全球定位系统, 质量控制, TurboEdit方法, 周跳探测, 抗差估计

Abstract:

Considering the characteristics of Spaceborne global positioning system (GPS) data, modifications are made on TurboEdit algorithm in aspects of cycle slip threshold setting and parameter setting. Then an improved robust estimation method is proposed based on the traditional robust scheme. The performance of the quality control method in this paper is evaluated by adopting the spaceborne GPS data of the GRACE satellites. The results show that the improved quality control scheme can significantly enhance the cycle slip detection performance, avoid the bad influence of the undetected cycle slip and gross error, and improve the POD results.

Key words: Spaceborne global positioning system, Quality control, TurboEdit algorithm, Cycle slip detection, Robust estimation

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