Spoofing interference detection method based on double antenna baseline in multi-sensor navigation

被引：0
|
作者：
Fu J. [1 ,2 ]
Zhao S. [1 ]
Deng F. [1 ]
Wang Y. [1 ]
机构：
[1] Tianjin Navigation Instrument Research Institute, Tianjin
[2] Laboratory of Science and Technology on Marine Navigation and Control of China State Shipbuilding Corporation, Tianjin
来源：
Zhongguo Guanxing Jishu Xuebao/Journal of Chinese Inertial Technology | 2022年 / 30卷 / 06期
关键词：
Baseline; Double antennas; Double difference; Spoofing interference;
D O I：
10.13695/j.cnki.12-1222/o3.2022.06.017
中图分类号：
学科分类号：
摘要：
Considering the risk that satellite navigation may be subject to spoofing interference, a spoofing interference detection method of double antenna baseline in multi-sensor navigation is proposed, based on the characteristics that there are two sets of satellite navigation antennas and other navigation sensors in the ships. The common view satellite pseudorange is used to calculate pseudorange double difference, and the navigation information fused by multi-sensors on the ship and satellite ephemeris information are used to calculate the unit vector of the satellite line of sight direction, then the baseline length is obtained according to the pseudorange double difference and the satellite line of sight direction unit vector. The calculated baseline length and the actual baseline length of the two antennas is used to construct spoofing interference detection function, which can determine whether under the spoofing attack. In order to verify the feasibility of the proposed method, the detection ability of the proposed method to 'burst' spoofing interference and ' induced' spoofing interference is tested by the satellite signal simulator and spoofing interference signal simulator. The test results show that the proposed method can effectively detect 0.1 n mile 'burst' spoofing interference and 0.2 kn 'induced' spoofing interference. The proposed method does not need to change the receive structure, only needs to modify the navigation fusion equipment software, which can offer reference for engineering applications. © 2022, Editorial Department of Journal of Chinese Inertial Technology. All right reserved.
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页码：820 / 825
页数：5
相关论文
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