Differential algorithm for improving precision of GPS positioning and velocity determination

ZHU Yan-hua1; CAI Ti-jing1; LI Chun2

doi:10.13873/j.1000-97872012.11.004

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Differential algorithm for improving precision of GPS positioning and velocity determination

更新时间：2025-09-11

- Differential algorithm for improving precision of GPS positioning and velocity determination
- Vol. 31, Issue 11, Pages: 122-124(2012)
- 作者机构：
  
  1. 东南大学仪器科学与工程学院
  2. 北京空间机电研究所
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.11.004
  CLC： P228.4
- Published：2012
- 稿件说明：
移动端阅览
[1]祝燕华,蔡体菁,李春.提高GPS精度的差分定位定速算法[J].传感器与微系统,2012,31(11):122-124.

ZHU Yan-hua1, CAI Ti-jing1, LI Chun2. Differential algorithm for improving precision of GPS positioning and velocity determination[J]. 2012, 31(11): 122-124.
[1]祝燕华,蔡体菁,李春.提高GPS精度的差分定位定速算法[J].传感器与微系统,2012,31(11):122-124. DOI： 10.13873/j.1000-97872012.11.004.

ZHU Yan-hua1, CAI Ti-jing1, LI Chun2. Differential algorithm for improving precision of GPS positioning and velocity determination[J]. 2012, 31(11): 122-124. DOI： 10.13873/j.1000-97872012.11.004.

摘要

针对GPS高精度应用环境的要求

研究了GPS差分定位定速算法。推导了利用双差法计算载体位置和速度的具体算法

并建立了具体的计算流程图。利用实验室两台NovAtel OEM—1双频GPS接收机观测的静态数据进行验证

结果表明:差分GPS算法有效减小了GPS的测量误差

扩展了GPS的应用范围

双差法确定的飞机位置误差小于0.1 m（1σ）

速度误差小于0.008 m/s（1σ）。

Abstract

The differential algorithm of GPS positioning and vecolity determination is researched

aiming at the demand for high precision application of GPS.Using the double-differential method

specific algorithm for calculating position and velocity of carrier is derived in detail

and specific calculating flow chart is given as well.The algorithm is verified using static datas collected by two NovAtel OEM—1 double frequency GPS receievers.The results show that measurement errors of GPS can be significantly reduced when the differential algorithm is used

which extends applications range of GPS.The position error of aircraft is less than 0.1 m（1σ）

velocity error is less than 0.008 m / s（1σ） by the double-differential method.

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references

利用伪距差分法进行GPS测速 [J]. 吴富梅,肖云. 武汉大学学报(信息科学版) . 2010(09)

单基站差分GPS定位精度的分析与检验 [J]. 焦海松,李锋,张松,李颖. 全球定位系统 . 2009(01)

基于GPS相对伪距差分的相对导航方法研究 [J]. 刘涛,解永春. 中国空间科学技术 . 2007(01)

提高GPS定位精度的数据处理技术 [J]. 宋茂忠. 数据采集与处理 . 2001(02)

GPS原理与接收机设计[M]. 电子工业出版社 , 谢钢, 2009

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