Chip-scale atomic clock aided INS/GNSS integrated navigation system spoofing detection method

被引：0
|
作者：
Liu Y. [1 ]
Li S. [1 ]
Fu Q. [1 ]
Zhou Q. [2 ]
机构：
[1] School of Automation, Northwestern Polytechnical University, Xi'an
[2] Flight Automatic Control Research Institute, Xi'an
来源：
Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology | 2019年 / 27卷 / 05期
关键词：
Chip-scale atomic clock; Integrated navigation; Satellite navigation; Spoofing detection;
D O I：
10.13695/j.cnki.12-1222/o3.2019.05.014
中图分类号：
学科分类号：
摘要：
The advent of commercial chip-level atomic clocks (CSAC) makes it possible to apply them in inertial/satellite integrated navigation systems. Aiming at the detection of satellite navigation spoofing signals, a time-dimension method for detectingspoofing attacks is proposed based onCSAC's high-precision time retention ability. The basic characteristics and time retention ability of CSAC are introduced. By analyzing the influence of GNSS spoofing on receiver time and the error distribution of clock bias prediction under authentic and spoofed signals, a CSAC-assisted spoofing detection model is constructed to detect typical jam-and-spoof interference. The measured data shows that the clock bias prediction accuracy of CSAC is more thanone order of magnitude higher than that of the internal clock of the ordinary receiver. The detection probability analysis proves the excellent performance of CSAC in GNSS spoofing detection. © 2019, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
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页码：654 / 660
页数：6
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