无线电工程2025，Vol.55Issue(7)：1404-1411,8.DOI:10.3969/j.issn.1003-3106.2025.07.005
INS辅助的车载GNSS单频周跳探测
INS-aided Single-frequency Cycle Slip Detection for Vehicle GNSS
摘要
Abstract
In urban vehicle dynamic environment,cycle slips often occur in carrier phase observations,which affect the ambiguity fixed solution and lead to a decrease in Global Narigation Satellite System(GNSS)positioning accuracy.To solve this problem,an INS-aided cycle slip detection method based on GNSS/Inertial Navigation System(INS)/Non-Holonomic Constraint(NHC)/Odometer(ODO)integrated navigation system is proposed.The estimation and correction of the comprehensive influence of GNSS and INS error sources are considered,and an INS-aided satellite-epoch double-difference single-frequency cycle slip detection quantity is constructed.Based on the actual road test data,an INS-aided cycle slip detection experiment is designed.For the continuous success and failure scenarios in ambiguity fixed solution,the influence of GNSS and INS error sources on the cycle slip detection quantity is analyzed.Experimental results show that this method can detect cycle slips as small as one cycle.Even for cycle slips after a period of continuous failures in ambiguity fixed solution,the method is still effective.关键词
惯性导航系统辅助/周跳探测/单频/车载动态Key words
INS-aided/cycle slip detection/single-frequency/vehicle dynamic分类
天文与地球科学引用本文复制引用
严悦,申丽丽,曹君..INS辅助的车载GNSS单频周跳探测[J].无线电工程,2025,55(7):1404-1411,8.基金项目
湖北省教育厅科学研究计划指导性项目(B2020425) （B2020425）
武汉市科技局知识创新专项(2023020201020480)Guidance Project of Scientific Research Plan of Hubei Provincial Education Department(B2020425) （2023020201020480）
Knowledge Innovation Special Project of Science and Technology Bureau of Wuhan Municipality(2023020201020480) （2023020201020480）
