摘要
全球定位系统由于其较长的传输距离和较弱的加密方式,易受到恶意攻击的影响.定位系统中的恶意阻断攻击、恶意欺骗攻击与恶意偏差注入攻击会导致攻击范围内的接收设备产生相似的定位偏移.相关研究认为上述定位偏差具有同源性进而利用分布式协同实现定位矫正,然而具体同源性没有在实验中明确分析.针对定位系统中常见的三种攻击,分别设计恰当的模拟实现方式,能够在多次蒙特卡洛实验中很好地控制环境变量,从而得到具有统计意义的实验结果.还建立衡量定位偏移同源性的指标,分析三种典型恶意攻击的同源性.然而,现有的分布式观测器方法没有考虑系统包含安全输出和存在有界噪声的情况,这使得观测器的应用受到限制.同时提出一种适配复杂系统的观测器来实现恶意攻击下的定位矫正,并得到了观测器收敛的充分条件.仿真结果证明了观测器理论的有效性.
The global positioning system is susceptible to malicious attacks due to its longer transmission and frailer encryption.The existence of blocking,spoofing,or biasing injection attacks in positioning systems would induce similar positioning offsets in the receiver within the attack vicinity.Relevant research presupposes that the aforementioned identical positioning offset is a homologous attack,and proposes that positioning calibration under malicious attack can be achieved through distributed collaboration.However,the homology of positioning offsets and their measurement methodology remain unclear.In this study,for the three classical malicious attacks in the positioning system,appropriate simulated implementation methods are designed separately,which can facilitate Monte Carlo experiments and control environmental variables,thereby ensuring the statistical significance of the experimental results.This study also establishes the homology index of positioning offsets,scrutinizes the statistical homology of the three typical malicious attacks.However,the existing distributed observer methods did not consider the existence of secure measurement and bounded noise,which limits the application of this theory.In this paper,a more comprehensive observer is proposed to achieve positioning calibration under malicious attacks,and a sufficient condition for the convergence of the observer has been obtained.The simulation results demonstrate the effectiveness of the observer theory.
作者
史雨堃
李肖磊
上官义恒
车万里
王友清
SHI Yu-Kun;LI Xiao-Lei;SHANGGUAN Yi-Heng;CHE Wan-Li;WANG You-Qing(College of Information Science and Technology,Beijing University of Chemical Technology,Beijing 100029;Key Laboratory of Intelligent Manufacturing Technology for Architectural Steel Structures,Xinjiang Production and Construction Corps,Urumqi 830022)
出处
《自动化学报》
北大核心
2025年第6期1277-1289,共13页
Acta Automatica Sinica
基金
国家自然科学基金(62303038,62433004)
中央高校基本科研业务费(ZY2411)
新疆生产建设兵团科技计划(2024YD016)资助。
关键词
控制系统恶意攻击
同源攻击
全球定位系统
阻断攻击
欺骗攻击
偏差注入攻击
Control system malicious attack
homologous attack
global positioning system
blocking attack
spoofing attack
biasing injection attack
