测绘学报 ›› 2017, Vol. 46 ›› Issue (4): 453-459.doi: 10.11947/j.AGCS.2017.20160532

• 大地测量学与导航 • 上一篇    下一篇

GNSS三频周跳探测与修复算法

刘柳1,2, 吕志伟1,2, 于晓东3, 王鹏旭1,2, 杨东森1,2, 张伦东1,2, 丛佃伟1,2   

  1. 1. 信息工程大学, 河南 郑州 450001;
    2. 北斗导航应用技术河南省协同创新中心, 河南 郑州 450001;
    3. 上海司南卫星导航技术股份有限公司, 上海 201801
  • 收稿日期:2016-11-01 修回日期:2017-03-12 出版日期:2017-04-20 发布日期:2017-05-05
  • 作者简介:刘柳(1992-),男,硕士生,研究方向为卫星导航。
  • 基金资助:
    国家自然科学基金(U1636219;41604032);国家重点研发计划(2016YB0801303);地理信息工程国家重点实验室开放研究基金(SKLGIE2015-M-2-5)

Real-time Cycle-slip Detection and Repair Algorithm of GNSS Triple-frequency Observations

LIU Liu1,2, LÜ Zhiwei1,2, YU Xiaodong3, WANG Pengxu1,2, YANG Dongsen1,2, ZHANG Lundong1,2, CONG Dianwei1,2   

  1. 1. University of Information Engineering, Zhengzhou 450001, China;
    2. BeiDou Navigation Technology Collaborative Innovation Center of Henan, Zhengzhou 450001, China;
    3. SinoGNSS Technology Ltd, Shanghai 201801, China
  • Received:2016-11-01 Revised:2017-03-12 Online:2017-04-20 Published:2017-05-05

摘要: 针对使用组合观测值探测周跳存在不敏感周跳且难以修复的问题,研究了三频周跳探测与修复的几何原理,从几何角度研究了多个相位无几何组合(GF)探测周跳的异同,以及加入MW组合后的效果,并搜索了相应的不敏感周跳。提出了以对应的横截面积最小为原则选取组合量的方法。经北斗三频实测数据验证,GF组合的数量以两个为宜,加入MW组合后不敏感周跳进一步减少,优化选取的两个GF组合和MW组合联合探测周跳仅存在一个不敏感周跳,且探测到的周跳均能正确修复。

关键词: 周跳探测, 不敏感周跳, 周跳修复, 优化组合量, 无几何相位组合

Abstract: Method of cycle-slip detection based on Geometry-free observation combinations has insensitive cycle-slip. This paper analyzes the principle of cycle-slip detection based on the geometric relationship. Then study the similarities and differences of more than one geometry free phase combinations separately. And study the effect of adding a MW(Melbourne Wübbena) combination. We proposed to select GF(Geometry Free) combinations by cross-sectional area. Finally BeiDou triple-frequency data have been used to validate the conclusion. We conclude that two geometry-free phase combination is the most reasonable choice for the detection of insensitive cycle-slip. And a MW combination can obviously decrease the amounts of insensitive cycle-slip. The optimized algorithm only has 1 insensitive cycle slip, and all detected cycle-slip repaired successfully.

Key words: cycle-slip detection, insensitive cycle-slip, cycle-slip repair, optimization of coefficients, phase geometry-free combinations

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