Vol. 18
Latest Volume
All Volumes
PIERC 142 [2024] PIERC 141 [2024] PIERC 140 [2024] PIERC 139 [2024] PIERC 138 [2023] PIERC 137 [2023] PIERC 136 [2023] PIERC 135 [2023] PIERC 134 [2023] PIERC 133 [2023] PIERC 132 [2023] PIERC 131 [2023] PIERC 130 [2023] PIERC 129 [2023] PIERC 128 [2023] PIERC 127 [2022] PIERC 126 [2022] PIERC 125 [2022] PIERC 124 [2022] PIERC 123 [2022] PIERC 122 [2022] PIERC 121 [2022] PIERC 120 [2022] PIERC 119 [2022] PIERC 118 [2022] PIERC 117 [2021] PIERC 116 [2021] PIERC 115 [2021] PIERC 114 [2021] PIERC 113 [2021] PIERC 112 [2021] PIERC 111 [2021] PIERC 110 [2021] PIERC 109 [2021] PIERC 108 [2021] PIERC 107 [2021] PIERC 106 [2020] PIERC 105 [2020] PIERC 104 [2020] PIERC 103 [2020] PIERC 102 [2020] PIERC 101 [2020] PIERC 100 [2020] PIERC 99 [2020] PIERC 98 [2020] PIERC 97 [2019] PIERC 96 [2019] PIERC 95 [2019] PIERC 94 [2019] PIERC 93 [2019] PIERC 92 [2019] PIERC 91 [2019] PIERC 90 [2019] PIERC 89 [2019] PIERC 88 [2018] PIERC 87 [2018] PIERC 86 [2018] PIERC 85 [2018] PIERC 84 [2018] PIERC 83 [2018] PIERC 82 [2018] PIERC 81 [2018] PIERC 80 [2018] PIERC 79 [2017] PIERC 78 [2017] PIERC 77 [2017] PIERC 76 [2017] PIERC 75 [2017] PIERC 74 [2017] PIERC 73 [2017] PIERC 72 [2017] PIERC 71 [2017] PIERC 70 [2016] PIERC 69 [2016] PIERC 68 [2016] PIERC 67 [2016] PIERC 66 [2016] PIERC 65 [2016] PIERC 64 [2016] PIERC 63 [2016] PIERC 62 [2016] PIERC 61 [2016] PIERC 60 [2015] PIERC 59 [2015] PIERC 58 [2015] PIERC 57 [2015] PIERC 56 [2015] PIERC 55 [2014] PIERC 54 [2014] PIERC 53 [2014] PIERC 52 [2014] PIERC 51 [2014] PIERC 50 [2014] PIERC 49 [2014] PIERC 48 [2014] PIERC 47 [2014] PIERC 46 [2014] PIERC 45 [2013] PIERC 44 [2013] PIERC 43 [2013] PIERC 42 [2013] PIERC 41 [2013] PIERC 40 [2013] PIERC 39 [2013] PIERC 38 [2013] PIERC 37 [2013] PIERC 36 [2013] PIERC 35 [2013] PIERC 34 [2013] PIERC 33 [2012] PIERC 32 [2012] PIERC 31 [2012] PIERC 30 [2012] PIERC 29 [2012] PIERC 28 [2012] PIERC 27 [2012] PIERC 26 [2012] PIERC 25 [2012] PIERC 24 [2011] PIERC 23 [2011] PIERC 22 [2011] PIERC 21 [2011] PIERC 20 [2011] PIERC 19 [2011] PIERC 18 [2011] PIERC 17 [2010] PIERC 16 [2010] PIERC 15 [2010] PIERC 14 [2010] PIERC 13 [2010] PIERC 12 [2010] PIERC 11 [2009] PIERC 10 [2009] PIERC 9 [2009] PIERC 8 [2009] PIERC 7 [2009] PIERC 6 [2009] PIERC 5 [2008] PIERC 4 [2008] PIERC 3 [2008] PIERC 2 [2008] PIERC 1 [2008]
2010-12-22
A Novel Diagonal Loading Method for Robust Adaptive Beamforming
By
Progress In Electromagnetics Research C, Vol. 18, 245-255, 2011
Abstract
The diagonal loading method is a simple and efficient method to improve the robustness of beamformers. However, how to determine the ideal diagonal loading level has not been adequately addressed. In this paper, it is observed in the simulation that the peak of the main beam is moved with the diagonal loading level when there exists a Direction of Arrival (DOA) estimation error. Based on the observation, a novel diagonal loading method is proposed, and a tradeoff exists between the robustness and the interference suppression capability by controlling the peak location of the main beam. As long as the DOA estimation error is less than the half of the width of main beam, the proposed beamformer will not suppress the Signal of Interest (SOI) as interference. Numerical experiments prove the effectiveness of the proposed method.
Citation
Wenyi Wang, Renbiao Wu, and Junli Liang, "A Novel Diagonal Loading Method for Robust Adaptive Beamforming," Progress In Electromagnetics Research C, Vol. 18, 245-255, 2011.
doi:10.2528/PIERC10091803
References

1. Stoica, P. and R. L. Moses, "Introduction to Spectral Analysis," Prentice-Hall, Englewood Cliffs, NJ, 1997.

2. Capon, J., "High-resolution frequency wavenumber spectrum analysis," Proc. IEEE, Vol. 57, No. 8, 1969.
doi:10.1109/PROC.1969.7278

3. Seligson, C. D., "Comments on high resolution frequency-wavenumber spectrum analysis," Proc. IEEE, Vol. 58, 947-949, 1970.
doi:10.1109/PROC.1970.7825

4. Van Veen, B. D., "Minimum variance beamforming with soft response constraints," IEEE Trans. Signal Process., Vol. 39, No. 9, 1964-1972, Sep. 1991.
doi:10.1109/78.134429

5. Bell, K. L., Y. Ephraim, and H. L. Van Trees, "A bayesian approach to robust adaptive beamforming," IEEE Trans. Signal Process., Vol. 48, No. 2, 386-398, Feb. 2000.
doi:10.1109/78.823966

6. Chen, C. Y. and P. P. Vaidyanathan, "Quadratically constrained beamforming robust against direction-of-arrival mismatch," IEEE Trans. Signal Process., Vol. 55, No. 8, 4139-4150, Aug. 2007.
doi:10.1109/TSP.2007.894402

7. Carlson, B. D., "Covariance matrix estimation errors and diagonal loading in adaptive arrays," IEEE Trans. Aerosp. Electron. Syst., Vol. 24, 397-401, Jul. 1988.

8. Vorobyov, S. A., A. B. Gershman, and Z. Q. Luo, "Robust adaptive beamforming using worst-case performance optimization: A solution to the signal mismatch problem," IEEE Trans. Signal Process., Vol. 51, No. 2, 313-324, Feb. 2003.
doi:10.1109/TSP.2002.806865

9. Lorenz, R. G. and S. P. Boyd, "Robust minimum variance beamforming," IEEE Trans. Signal Process., Vol. 53, No. 5, 1684-1696, May 2005.
doi:10.1109/TSP.2005.845436

10. Li, J., P. Stoica, and Z.Wang, "On robust capon beamforming and diagonal loading," IEEE Trans. Signal Process., Vol. 51, No. 7, 1702-1715, Jul. 2003.

11. Li, J., P. Stoica, and Z. Wang, "Doubly constrained robust beamformer," IEEE Trans. Signal Process., Vol. 52, No. 9, 2407-2423, Sep. 2004.
doi:10.1109/TSP.2004.831998

12. Liu, W. and S. Ding, "A efficient method to determine the diagonal loding factor using the constant modulus feature," IEEE Trans. Signal Process., Vol. 56, No. 12, 6102-6106, Dec. 2008.
doi:10.1109/TSP.2008.2005862

13. Du, L., T. Yardibi, J. Li, and P, Stoica, "Review of user parameter-free robust adaptive beamforming algorithms," Digital Signal Processing, A Review Journal, Vol. 19, No. 4, 567-582, Jul. 2009.
doi:10.1016/j.dsp.2009.02.001

14. Du, L., J. Li, and P. Stoica, "Fully automatic computation of diagonal loading levels for robust adaptive beamforming," IEEE Transactions on Aerospace and Electronic Systems, Vol. 46, No. 1, 449-458, Jan. 2010.
doi:10.1109/TAES.2010.5417174