| GNSS三频周跳探测与修复算法 |
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| 引用本文： | 刘柳,吕志伟,于晓东,王鹏旭,杨东森,张伦东,丛佃伟.GNSS三频周跳探测与修复算法[J].测绘学报,2017,46(4):453-459. |
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| 作者姓名： | 刘柳 吕志伟 于晓东 王鹏旭 杨东森 张伦东 丛佃伟 |
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| 作者单位： | 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 |
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| 基金项目： | 国家自然科学基金，国家重点研发计划，地理信息工程国家重点实验室开放研究基金(SKLGIE2015-M-2-5)The National Natural Science Foundation of China，The National Key Research Plan Project Funding(No.2016YB0801303)；Geographic Information Engineering National Key Laboratory of Open Research Fund |
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| 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。
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| 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 |
| 收稿时间： | 2016-11-01 |
| 修稿时间： | 2017-03-12 |
Real-time Cycle-slip Detection and Repair Algorithm of GNSS Triple-frequency Observations |
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| LIU Liu,L Zhiwei,YU Xiaodong,WANG Pengxu,YANG Dongsen,ZHANG Lundong,CONG Dianwei.Real-time Cycle-slip Detection and Repair Algorithm of GNSS Triple-frequency Observations[J].Acta Geodaetica et Cartographica Sinica,2017,46(4):453-459. |
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| Authors: | LIU Liu L Zhiwei YU Xiaodong WANG Pengxu YANG Dongsen ZHANG Lundong CONG Dianwei |
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| Institution: | 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 |
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| 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. |
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| Keywords: | cycle-slip detection insensitive cycle-slip cycle-slip repair optimization of coefficients phase geometry-free combinations |
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