摘要
针对GNSS/INS松组合系统难以辨识粗差和欺骗信号的问题,提出了一种基于滑窗一致性检测的抗欺骗方法。该方法包含欺骗检测和欺骗抵抗两个部分。首先,根据欺骗信号连续播发的特点,引入滑动窗口,通过改进现有的位置一致性检测方法,实现欺骗信号的可靠检测。然后,对于融合不同精度惯性导航系统的组合导航系统,分析了检测到欺骗信号后的自主导航性能,并在此基础上提出了相应的抵抗策略。设计了5种仿真场景验证所提出的方法,结果表明:采用该方法能够正确辨识偶然性粗差和欺骗信号,并采取相应的策略,验证了该方法的有效性。
Given the problem that it is difficult to identify the gross errors and spoofing signals of GNSS/INS loose combination system,an anti-spoofing method based on the consistency detection of the sliding window was proposed.This method consists of two parts including deception detection and deception resistance.Firstly,according to the characteristics of continuous transmission of spoofing signals,a sliding window was introduced to improve the existing position consistency detection methods and further realize reliable detection of spoofing signals.Then,for the integrated navigation system with different precision inertial navigation system,when the autonomous navigation was interfered by spoofing signals and the spoofing signals can be detected,its performance was analyzed.Based on it,the corresponding resistance strategies were put forward.Finally,five simulation situations were designed to verify the proposed method.The experimental results show that the proposed method can be used to correctly identify the accidental gross errors and spoofing signals,and the corresponding strategies can be adopted to verify the effectiveness of the proposed method.
作者
张耀春
孙付平
肖凯
张伦东
崔建勇
ZHANG Yaochun;SUN Fuping;XIAO Kai;ZHANG Lundong;CUI Jianyong(Information Engineering Unitersiy,Zhengzhou 450001,China;63891 Troops,Luoyang 471000,China)
出处
《测绘科学技术学报》
2025年第1期1-7,共7页
Journal of Geomatics Science and Technology
基金
国家自然科学基金项目(42174047,42104034,42174036)。
关键词
粗差
欺骗信号
组合导航
滑窗检测
抗欺骗
gross error
spoofing signal
integrated navigation
sliding window detection
anti-spoofing
