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基于TDCP/INS组合导航的考虑卫星几何结构的GPS周跳检测

GPS Cycle Slip Detection Considering Satellite Geometry Based on TDCP/INS Integrated Navigation.

作者信息

Kim Younsil, Song Junesol, Kee Changdon, Park Byungwoon

机构信息

Institute of Advanced Aerospace Technology, School of Mechanical and Aerospace Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-744, Korea.

School of Mechanical and Aerospace Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 143-747, Korea.

出版信息

Sensors (Basel). 2015 Sep 30;15(10):25336-65. doi: 10.3390/s151025336.

DOI:10.3390/s151025336
PMID:26437412
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4634390/
Abstract

This paper presents a means of carrier phase cycle slip detection for an inertial-aided global positioning system (GPS), which is based on consideration of the satellite geometry. An integrated navigation solution incorporating a tightly coupled time differenced carrier phase (TDCP) and inertial navigation system (INS) is used to detect cycle slips. Cycle-slips are detected by comparing the satellite-difference (SD) and time-difference (TD) carrier phase measurements obtained from the GPS satellites with the range estimated by the integrated navigation solution. Additionally the satellite geometry information effectively improves the range estimation performance without a hardware upgrade. And the covariance obtained from the TDCP/INS filter is used to compute the threshold for determining cycle slip occurrence. A simulation and the results of a vehicle-based experiment verify the cycle slip detection performance of the proposed algorithm.

摘要

本文提出了一种用于惯性辅助全球定位系统（GPS）的载波相位周跳检测方法，该方法基于对卫星几何结构的考虑。采用一种结合了紧密耦合时间差分载波相位（TDCP）和惯性导航系统（INS）的组合导航解决方案来检测周跳。通过将从GPS卫星获得的星间差分（SD）和时间差分（TD）载波相位测量值与组合导航解决方案估计的距离进行比较来检测周跳。此外，卫星几何信息在无需硬件升级的情况下有效提高了距离估计性能。并且利用从TDCP/INS滤波器获得的协方差来计算用于确定周跳发生的阈值。仿真和基于车辆的实验结果验证了所提算法的周跳检测性能。

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用于充分利用城市环境观测的GNSS/INS处理策略的效果分析
Sensors (Basel). 2021 Jan 17;21(2):620. doi: 10.3390/s21020620.
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Effective Cycle Slip Detection and Repair for PPP/INS Integrated Systems.PPP/INS 集成系统中的有效周跳探测与修复。
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A New Algorithm for High-Integrity Detection and Compensation of Dual-Frequency Cycle Slip under Severe Ionospheric Storm Conditions.一种新的算法，用于在严重电离层暴条件下对双频周跳的高精度检测和补偿。
Sensors (Basel). 2018 Oct 28;18(11):3654. doi: 10.3390/s18113654.
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A New Real-Time Cycle Slip Detection and Repair Method under High Ionospheric Activity for a Triple-Frequency GPS/BDS Receiver.一种适用于三频GPS/BDS接收机的高电离层活动下实时周跳检测与修复新方法。
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Sensors (Basel). 2016 Dec 5;16(12):2064. doi: 10.3390/s16122064.