Beamforming Robust in Interferer Direction of Arrival Uncertainties with Side lobes Level Control

Document Type : Original Article

Authors

1 Shariati s.t., Babol Noshirvani university of tec

2 Faculty and Research Institute of Electrical, Electronic and Cyber Warfare ,Imam Hossein University

Abstract

One of the ways to deal with the effect of jammers, especially intra-band jammers, is to use beamforming (BF) in multi-antenna systems. In this method, based on the DOA of desired signal and DOA of interference, it is tried to design peak of beam pattern in the direction of the desired source and null of pattern in the direction of interferer. Since the depth of null and its location depend on the direction of interferer and in practice, it is not possible to obtain accurate information from electronic support measure (ESM) system, in this paper, a beamforming method which is robust to DOA estimation error has been proposed. Furthermore, nulling the interferer’s direction results in side lobes level increment. This can decreas communication systems performance. So, in adition to robust jammer nulling, the side lobe level of considered directions is controlled, too. In this paper, three BF weights optimization from three points of view are defined and solved analytically based on convex optimization framework. Simulation results show that proposed method is more efficient than previous and traditional methods. The proposed method keeps SINR in the order of SNR which can be obtained by DOA estimation error free methods.

Keywords

References

[1] M. Sargazi Moghaddam and kh. Sadeghi, “Beam forming and DOA estimation in smart antenna systems,” Faculty and Research Institute of Electrical, sharif university, 2007. (In Persian).
 
[2] F. Samsami-Khodadad and F. Nazari, “A Novel and Efficient DS/CDMA Direction of Arrival Algorithm for Multipath Fading Channel,” Journal of Electronical & Cyber Defence, vol. 3, no. 3, 2016. (In Persian).
 
[3] J. Capon, “High-resolution frequency-wavenumber spectrum analysis,” Proceedings of the IEEE, vol. 57, no. 8, pp. 1408-1418, Aug, 1969.
 
[4] J. Li and P. Stoica, “Robust Adaptive Beamforming,” Wiley, New York, 2006.
 
[5] B. D. Carlson, “Covariance matrix estimation errors and diagonal loading in adaptive arrays,” Aerospace and Electronic Systems, IEEE Transactions on, vol. 24, no. 4, pp. 397–401, Jul, 1988.
 
[6] O. L. Frost, “An algorithm for linearly constrained adaptive array processing,” Proceedings of the IEEE, vol. 60, no. 8, pp. 926–935, Aug. 1972.D. Carlson, “Covariance matrix estimation errors and diagonal loading in adaptive arrays,” Aerospace and Electronic Systems, IEEE Transactions on, vol. 24, no. 4, pp. 397–401, Jul, 1988.
 
 
[7] S. Applebaum and D. Chapman, “Adaptive arrays with main beam constraints,” Antennas and Propagation, IEEE Transactions on, vol. 24, no. 5, pp. 650–662,   Sep, 1976.
 
[8] C. Y. Tseng and L. J. Griffiths, “A unified approach to the design of linear constraints in minimum variance adaptive beamformers,” Antennas and Propagation, IEEE Transactions on, vol. 40, no. 12, pp. 1533–1542, Dec, 1992.
 
[9] J. B. Liu, X. C. Cong, W. Xie, Q. Wan, and G. Gui, “robust adaptive beamforming for noncircular signal against array steering vector mismatch and interference nonstationary,” proceeding of ChinaSIP, pp. 89-93, 2015.
 
[10] W. Guo, P. Mu, Q. Yin, and W. Wang, “A New Robust Beamforming Method Against Signal Steering Vector Errors And Moving Jammers,” 2011 International Conference on Wireless Communications and Signal Processing (WCSP), pp. 1-5, 2011.
 
 
[11] M. Ashouri and B. Mozaffari, “Robust Beamforming Based on Convex Programming with Sidelobe and Signal Direction Mismatch Control”, Amirkabir University of Technology, Tehran, IRAN, 2015.
 
 
[12] V. Rabinovich and N. Alexandrov, “Antenna Arrays and Automotive Applications,” Springer, New York, Chapter 2, 2013.
 
 
[13] C. Zhou, Y. Gu, W. Song, Y. Xie, and Z. Shi, “Robust Adaptive Beamforming Based on DOA Support Using Decomposed Coprime Subarrays,” proceeding of 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2986-2990, 2016.
 
 
[14] Ioannis. P. Gravas, D. Zaharis, V. Yioultsis, “Adaptive Beamforming with Side Lobe Suppression by Placing Extra Radiation Pattern Nulls”, IEEE Transactions on Antennas and Propagation, 2018.
 
[15] A. Aubry, “Design and Analysis of Adaptive Sidelobe Blanking Architectures”, 2020.
Volume 4, Issue 2 - Serial Number 2
Summer 2023
March 2021
Pages 45-59

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