A Broadened and Deepened Anti-Jamming Technology for High-Dynamic GNSS Array Receivers

Chen, Liwen; Zheng, Jiansheng

doi:10.1587/transcom.2015ebp3493

Cited by 9 publications

(6 citation statements)

References 17 publications

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“…However, due to the weakness of satellite navigation signal and the disclosure of data format, the receiver is vulnerable to jamming and spoofing [7][8][9][10]. In order to improve the antiinterference performance of the receiver, many researchers have given solutions by different technical means, such as adding array antenna [11], integrated circuit design [12], and et.al [13]. Compared with the jamming effect that making the receiver unable to work, spoofing can make the receiver output wrong positioning and timing results, which is more threatening and harmful [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Position and time deception based on satellite navigation technology and experimental verification

Liu

Wang

Yang

et al. 2021

IEICE Electron. Express

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Due to the characteristics of open system and weak signal power of satellite navigation signal, it is very easy to be affected by navigation deception and other interference. At present, most studies divide the influence of deception signal on the receiver into two independent aspects: positioning and timing. There is a lack of research on accurately controlling the positioning and timing of the receiver in the process of deception. In this paper, the principle of accurately controlling positioning and timing in navigation deception are analyzed, three deception scenarios are proposed and verified by experiments. The experiments show that :1) it is feasible to introduce a step or linear position deviation to the receiver without excessively affecting the timing results; 2) it is feasible to introduce a step or linear time deviation to the receiver without excessively affecting the positioning results:3) it is feasible to perform position spoofing and time spoofing on the receiver at the same time, the positioning results of the receivers were successfully pulled off by 60m in the experiment, while their timing results were pulled off by 1.5 s  .

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Section: Introductionmentioning

confidence: 99%

Position and time deception based on satellite navigation technology and experimental verification

Liu

Wang

Yang

et al. 2021

IEICE Electron. Express

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“…However, the degrees of freedom of antennas are limited by the number of antenna elements, and the space-time adaptive processing (STAP) method increases the degrees of freedom without increasing the array elements. The method also has better antijamming performance in a highly dynamic environment [12][13][14]. Although spoofing is highly concealable and creates confusion, many scholars have proposed spoofing detection and suppression algorithms.…”

Section: Introductionmentioning

confidence: 99%

A Combined Antijamming and Antispoofing Algorithm for GPS Arrays

Yang

Zhang

Tang

et al. 2019

International Journal of Antennas and Propagation

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The Global Positioning System (GPS), with its accurate positioning and timing information, has become a commonly used navigation instrument for many applications. However, it is susceptible to intentional interference such as jamming and spoofing. The conventional antijamming GPS receiver fails to work in a combined jamming and spoofing attack scenario. To solve the problem, a combined antijamming and antispoofing algorithm for a GPS receiver based on an antenna array is proposed. In this method, the jamming is eliminated by subspace projection, and then a compressed sensing framework is adopted to obtain the direction of arrival (DOA) of the despreading satellite navigation signal and detect the spoofing signal. According to the DOA of the authentic and spoofing signals, the receiver uses adaptive multibeamforming to concurrently achieve the undistorted reception of the authentic satellite signal and the suppression of the spoofing. We analyse three aspects of algorithmic performance: the antenna array direction diagram, the spoofing detection and the acquisition results. The simulation results and their analysis preliminarily show that the proposed method can detect and suppress GPS jamming and spoofing effectively.

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“…In Ref. [9], a broadened model based on maximizing output power and constraining interference was proposed to improve the signal-to-interference and -noise ratio of the receiver. In Ref.…”

Section: Introductionmentioning

confidence: 99%

An Anti-Jamming Null-Steering Control Technique Based on Double Projection in Dynamic Scenes for GNSS Receivers

Wang

Chang

2019

Sensors

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When a global navigation satellite system (GNSS) receiver suppresses interference in a dynamic scene, the direction of the interference signal arriving at the receiver may change rapidly. The null formed by the spatial filtering based on the array antenna will become wider and shallower, and the anti-jamming performance will deteriorate. A null-steering control technique based on a dual projection algorithm is proposed in this paper, which can effectively increase the depth of the null. In this paper, the dynamic model between the interference and the receiver is established first. Based on the model, the rate of change of the arrival direction of the interference is analyzed, and the phenomenon of the spatial filtering null becoming wider and shallower is simulated and verified. Then, the double projection algorithm is introduced to effectively deepen the null. The simulation results show that the proposed method can effectively increase the null depth by 30 to 50 dB, which significantly improves the anti-jamming performance of the spatial filtering in dynamic scenes.

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A Broadened and Deepened Anti-Jamming Technology for High-Dynamic GNSS Array Receivers

Cited by 9 publications

References 17 publications

Position and time deception based on satellite navigation technology and experimental verification

Position and time deception based on satellite navigation technology and experimental verification

A Combined Antijamming and Antispoofing Algorithm for GPS Arrays

An Anti-Jamming Null-Steering Control Technique Based on Double Projection in Dynamic Scenes for GNSS Receivers

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