Main-Lobe Jamming Suppression Method of using Spatial Polarization Characteristics of Antennas

Dai, Huanyao; Wang, Xuesong; Li, Yongzhen; Liu, Yong; Xiao, Shunping

doi:10.1109/taes.2012.6237586

Cited by 72 publications

(34 citation statements)

References 12 publications

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“…Eigenvalue and eigenvector of the main-lobe jamming signal can be achieved by the correlation of decomposed sample covariance matrix and steering vector of signal's incidence angle [25]. The correlation coefficient equation between a 1 and a 2 is…”

Section: Covariance Matrix Reconstructionmentioning

confidence: 99%

A Robust Method to Suppress Jamming for GNSS Array Antenna Based on Reconstruction of Sample Covariance Matrix

Gong

Wang

Yao

et al. 2017

International Journal of Antennas and Propagation

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The Global Navigation Satellite System (GNSS) receiver is vulnerable to active jamming, which results in imprecise positioning. Therefore, antijamming performance of the receiver is always the key to studies of satellite navigation system. In antijamming application of satellite navigation system, if active jamming is received from array antenna main-lobe, main-lobe distortion happens when the adaptive filtering algorithm forms main-lobe nulling. A robust method to suppress jamming for satellite navigation by reconstructing sample covariance matrix without main-lobe nulling is proposed in this paper. No nulling is formed while suppressing the main-lobe jamming, which avoids main-lobe direction distortion. Meanwhile, along with adaptive pattern control (APC), the adaptive pattern of array antenna approaches the pattern without jamming so as to receive the matching navigation signal. Theoretical analysis and numerical simulation prove that this method suppresses jamming without main-beam distortion. Furthermore, the output SINR will not decrease with the main-lobe distortion by this method, which improves the antijamming performance.

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Section: Covariance Matrix Reconstructionmentioning

confidence: 99%

A Robust Method to Suppress Jamming for GNSS Array Antenna Based on Reconstruction of Sample Covariance Matrix

Gong

Wang

Yao

et al. 2017

International Journal of Antennas and Propagation

View full text Add to dashboard Cite

show abstract

“…However, the computational complexity of SOC method is too large, and it cannot give an analytical algorithm expression. Dai et al put forward a spatial polarization filtering technology in literature [5]. It obtained the estimation of orthogonal polarization echo and polarization state through the polarization slow variation characteristic of array antenna in spatial domain scanning.…”

Section: Introductionmentioning

confidence: 99%

Research on Space-time Blocking Matrix Algorithm Based on Frequency Diverse Array

Liao

2020

Preprint

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Because the beam pattern of the conventional phased array or MIMO radar is only related to the angle dimension, it is difficult to suppress the incident interference when it is in the mainlobe or at the same angle of the desired signal. According to the development demand of mainlobe anti-interference technology. In this paper, a space - time blocking matrix processing algorithm based on FDA is proposed. The algorithm gives the specific structure of the blocking matrix, which can not only avoid the interference of the same angle and different distances, but also eliminate the interference signal in the direction of the mainlobe without affecting the energy of other incident signals, so as to ensure the good shape of the beam pattern. The simulation results show that the algorithm can successfully suppress the mainlobe interference and has good beam-conformal.

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“…What is more, the RCSs of jamming and targets could not be obtained priorly. A main-lobe jamming suppression technique based on the spatial polarization characteristics (SPCs) of the antenna of a single polarization radar seeker was proposed [5][6][7]. It can suppress the echo signal from main-lobe jamming and obtain the DOA of the target by orthogonal polarization decomposition, polarization estimation, and spatial virtual polarization filtering.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Countering Technique for Angle Deception Based on Dual Polarization Radar Seeker

Zhang

Pan

2017

International Journal of Antennas and Propagation

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Angle deception jamming makes the monopulse radar seeker track to itself but not the real target, which is catastrophic for the guidance radar. In this paper, an adaptive technique based on dual polarization radar is presented to counter it. How angle deception jamming acts on the monopulse tracking radar is first investigated. An angle estimation technique of the real target is then derived from the conventional monopulse method, although it is being interfered with by angle deception jamming. Meanwhile, the polarization ratio characteristic of the angle deception jamming could be adaptively estimated in current practical scene. Furthermore, the similar characteristic of Jones vectors is defined as the rule to judge whether the target is being interfered with by jamming. It can make the radar seeker select different techniques for angle estimation adaptively. Finally, two major factors of angle estimation accuracy are analyzed by simulation and the effectiveness of the proposed technique is proved through experiments.

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Main-Lobe Jamming Suppression Method of using Spatial Polarization Characteristics of Antennas

Cited by 72 publications

References 12 publications

A Robust Method to Suppress Jamming for GNSS Array Antenna Based on Reconstruction of Sample Covariance Matrix

A Robust Method to Suppress Jamming for GNSS Array Antenna Based on Reconstruction of Sample Covariance Matrix

Research on Space-time Blocking Matrix Algorithm Based on Frequency Diverse Array

Adaptive Countering Technique for Angle Deception Based on Dual Polarization Radar Seeker

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