GNSS 2×2 antenna array with beamforming for multipath detection

Razgūnas, Matas; Rudys, Saulius; Aleksiejunas, Rimvydas

doi:10.1016/j.asr.2022.12.035

Cited by 3 publications

(2 citation statements)

References 26 publications

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“…Another area that needs more research is how higher-end software defined-radios would work in Western Kentucky since these software-defined-radios would have a better frequency range. The SDR's hardware impacts the signal it receives, and newer hardware often allows for a better frequency range [14][15][16][17][18][19]. More research in these areas would help develop educational curricula in SDR configurations and have a strong baseline on what can be done in Western Kentucky.…”

Section: Future Researchmentioning

confidence: 99%

Creating a Practical Education in Space Cybersecurity Through Antenna Design and Implementation

Duncan,

Joyce,

Bugg

et al. 2024

CISSE

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With the increasing concerns over cybersecurity and space systems preparing the next generation of cybersecurity professionals is critical. In this research, undergraduate and graduate students were exposed to cybersecurity and space systems through practical antenna design and implementation in hopes of capturing pirate communication signals while in the Western Kentucky area. Students designed and built turnstile and helical antennas that focused on the 255 MHz and 318 MHz frequencies that interfaced with software-defined radios. With these systems, students were able to capture a limited range of low earth orbiting (LEO) satellite communications while ascertaining an understanding of satellite communication fundamentals. Overall, students were able to gain an understanding of antenna design, the importance of radio frequency, and satellite communications.

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Section: Future Researchmentioning

confidence: 99%

Creating a Practical Education in Space Cybersecurity Through Antenna Design and Implementation

Duncan,

Joyce,

Bugg

et al. 2024

CISSE

View full text Add to dashboard Cite

show abstract

“…Accurately locating the interference source and eliminating its impact is crucial in the field of satellite navigation and communication. Estimating the direction of satellite interference sources can help in identifying multipath interference signals and utilizing beamforming technology to eliminate interference [8][9][10], thus improving the signal's robustness.…”

Section: Introductionmentioning

confidence: 99%

Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction

Yao,

Zhao,

Bai

et al. 2023

Sensors

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Direction of arrival (DOA) estimation is an effective method for detecting various active interference signals during the satellite navigation process. It can be utilized for both interference detection and anti-interference applications. This paper proposes a DOA estimation algorithm for satellite interference sources based on frequency domain covariance matrix reconstruction (FDCMR) to address various types of active interference that may occur in the satellite navigation positioning process. This algorithm can estimate the DOA of coherent signals from multiple frequency points under low signal-to-noise ratio (SNR) conditions. The signals received from the array are transformed from the time domain to the frequency domain using a fast Fourier transform (FFT). The data corresponding to the frequency point of the target signal is extracted from the signal in the frequency domain. The frequency domain covariance matrix of the received array signals is reconstructed by utilizing its covariance matrix property. The spatial spectrum search method is used for the final DOA estimation. Simulation experiments have shown that the proposed algorithm performs well in the DOA estimation under low SNR conditions and also resolves coherency. Moreover, the algorithm’s effectiveness is verified through comparison with three other algorithms. Finally, the algorithm’s applicability is validated through simulations of various interference scenarios.

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GNSS Pseudorange Correction Using Machine Learning in Urban Areas

Cheng,

Sun

2024

Navigation: Science and Technology

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GNSS 2×2 antenna array with beamforming for multipath detection

Cited by 3 publications

References 26 publications

Creating a Practical Education in Space Cybersecurity Through Antenna Design and Implementation

Creating a Practical Education in Space Cybersecurity Through Antenna Design and Implementation

Satellite Interference Source Direction of Arrival (DOA) Estimation Based on Frequency Domain Covariance Matrix Reconstruction

GNSS Pseudorange Correction Using Machine Learning in Urban Areas

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