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Conference Paper
Adaptive Beamforming for Anti-Jamming GPS L1 Based on Self-Coherence Restoral
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- Authors
- Inone Joo, Cheonsig Sin
- Issue Date
- 2015-11
- Citation
- Asia-Pacific International Symposium on Aerospace Technology (APISAT) 2015, pp.1-4
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we present the blind anti-jamming GPS receiver based on the cross-SCORE (spectral self-coherence restoral) algorithm in order to mitigate the jamming signals with the self-coherence properties of GPS L1 coarse/acquisition (C/A) signal such as the continous wave (CW) jamming. The proposed scheme determines the optimal array weights of beamforming coefficients by combining all eigenvectors related to GPS signal DOA (direction of arrival) which is selected after classifying all eigenvalues of the cost function including the cross correlation matrix between the received data and the time-delayed received data which maintains self coherent properties. The simulation results demonstrate that the proposed schemes can provide high gains in the antenna beam pattern to GPS satellites, while mitigating the jamming signals with the self-coherence properties of GPS L1 C/A signal.
- KSP Keywords
- Adaptive beamforming, Beam pattern, Coherence properties, Coherent properties, Cost Function, Cross-Correlation, Direction of arrival(DoA), GPS receiver, GPS signal, High Gain, Time delayed