Research on fast RTK GNSS algorithm based on partial ambiguity resolution

Nannan Hu*, Hongping Zhang, Yongzhong Shi, Ronghao Wei, Tuan Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

The key of GNSS RTK algorithm is the fast and reliable double difference integer ambiguity resolution. Currently widely used algorithm is the LAMBDA method based on the ambiguity search algorithm. But the search efficiency of LAMBDA method is gradually reduced with the increase of the degree of ambiguity. While multi-system compatible positioning is the trend of the GNSS development, the double difference ambiguity dimension is bound to increase significantly, thus reducing the search efficiency of the LAMBDA method. This paper puts forward a resolution in which dividing the ambiguity into different groups which is sorted by the elevation. First fix higher elevation ambiguity, and then to part of the ambiguity. Thus speeding up the ambiguity search efficiency. Based on the data of GPS and BeiDou system, this paper proves that this algorithm can improve the efficiency of the ambiguity resolution.

Original languageEnglish
Title of host publicationChina Satellite Navigation Conference, CSNC 2017 Proceedings
EditorsShiwei Fan, Wenxian Yu, Jingnan Liu, Jiadong Sun, Yuanxi Yang
PublisherSpringer Verlag
Pages481-491
Number of pages11
ISBN (Print)9789811045936
DOIs
Publication statusPublished - 2017
Externally publishedYes
Event8th China Satellite Navigation Conference, CSNC 2017 - Shanghai, China
Duration: 23 May 201725 May 2017

Publication series

NameLecture Notes in Electrical Engineering
Volume439
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference8th China Satellite Navigation Conference, CSNC 2017
Country/TerritoryChina
CityShanghai
Period23/05/1725/05/17

Keywords

  • Ambiguity grouping
  • GNSS RTK
  • LAMBDA
  • Partial ambiguity resolution

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