Simulink Model Implementation of MVDR Adaptive Beamformer for GPS Anti-Jamming
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초록
For the purpose of development of anti-jamming GPS receiver we have developed an anti-jamming algorithm and its Simulink implementation model. The algorithm used here is a form of Space-Time Adaptive Processing (STAP) filter which is well known as an effective way to remove wideband jamming signals. We have chosen Minimum Variance Distortionless Response (MVDR) block-adaptive beamforming algorithm for our development since it can provide relatively fast convergence speed to reach optimal weights, stable and high suppression capability on various types of jamming signals. We will show modeling results for this MVDR type adaptive beamformer and some simulation results. We also show the integrity of the demodulated satellite signals and the accuracy of resulting navigation solutions after anti-jamming operation.
Abstract
For the purpose of development of anti-jamming GPS receiver we have developed an anti-jamming algorithm and its Simulink implementation model. The algorithm used here is a form of Space-Time Adaptive Processing (STAP) filter which is well known as an effective way to remove wideband jamming signals. We have chosen Minimum Variance Distortionless Response (MVDR) block-adaptive beamforming algorithm for our development since it can provide relatively fast convergence speed to reach optimal weights, stable and high suppression capability on various types of jamming signals. We will show modeling results for this MVDR type adaptive beamformer and some simulation results. We also show the integrity of the demodulated satellite signals and the accuracy of resulting navigation solutions after anti-jamming operation.
참고문헌 (5)
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- R.L. Fante, "Wideband cancellation of interference in a GPS receive array", IEEE Transactions on Aerospace and Electronic Systems, 36(2), pp.549~564 (2000), Institute of Electrical and Electronics Engineers (IEEE)[DOI]
- Fernandez-Prades, C., "Robust GNSS Receivers by Array Signal Processing: Theory and Implementation", Proceedings of the IEEE, 104, pp.1207~1220 (2016)[DOI]
- "Matlab 2018, version 9.5.0 (R2018b)"[URL]
- Moulin, D., "High-Performance RF-to-Digital Translators for GPS Anti-Jam Applications", Proceedings of the 11th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GPS 1998), pp.233~239 (1998)