特征矢量约束的近程杂波抑制鲁棒自适应波束形成算法

doi:10.3969/j.issn.1001-2400.2011.06.017

Abstract

Abstract:

For the cancellation of the severe range dependent short-range clutter in the case of range ambiguity of non-side-looking arrays (NSL), an elevation filtering algorithm is proposed. Based on the eigendecomposition of the covariance matrix, an eigenvector selecting method is developed. Using this method, eigenvectors corresponding to short-range and long-range are selected as constraints for the adaptive beamformer. It is shown that the eigenvector constrained (EVC) beamforming algorithm demonstrates the advantages of low sensitivity to steering angle error or steering vector mismatch and great robust main-lobe protecting ability over conventional algorithms. Computer simulation results are presented that illustrate the effectiveness of the proposed algorithm.

Key words: non-side-looking array, short-range clutter suppression, adaptive beamforming, eigenvector constraint

CLC Number:

TN958.92

LIU Tao;LU Changjie;LIAO Hui;MA Hongguang. Robust adaptive beamforming algorithm based on the eigenvector constraint for short-range clutter suppression[J].J4, 2011, 38(6): 108-112+129.

References

［1］ Kreyenkamp O, Klemm R. Doppler Compensation in Forward-looking STAP Radar ［J］. IEE Proceedings of Radar, Sonar and Navigation, 2001, 148(5): 253-258.
［2］ Qu Y, Liao G S, Zhu S Q, et al. Space-time Resampling Method for the Range-dependence of Clutter Spectrum in Non-sidelooking STAP Radars ［C］//IET International Radar Conference. Guilin: IET, 2009: 1-3.
［3］ Beau S, Marcos S. Range Dependent Clutter Rejection Using Range-recursive Space-time Adaptive Processing (STAP) Algorithms ［J］. Signal Processing, 2010, 90(1): 57-68.
［4］ Corbell P M, Hale T B. 3-dimensional STAP Performance Analysis Using the Cross-spectral Metric ［C］//Proceedings of the IEEE Radar Conference. Philadelphia: IEEE, 2004: 610-615.
［5］ Madurasinghe D, Berry P E. Pre-Doppler Direct Data Domain Approach to STAP ［J］. Signal Processing, 2005, 85(10): 1907-1920.
［6］ Sun K, Zhang H, Li G, et al. A Novel Algorithm Using Sparse Recovery Technique ［C］//IEEE International Geoscience and Remote Sensing Symposium. Beijing: IEEE, 2009: 336-339.
［7］ Xie W C, Wang Y L. New Solution to the Range-dependence Problem in STAP Radar with HPRF ［C］//IEEE Radar Conference. Boston: IEEE, 2007: 562-567.
［8］孟祥东, 王彤, 吴建新, 等. 机载雷达非正侧面阵近程杂波抑制新方法［J］. 西安电子科技大学学报, 2009, 36(2): 245-249.
Meng Xiangdong, Wang Tong, Wu Jianxin, et al. New Short-range Clutter Suppression Approach for the Non-side-looking Airborne Radar ［J］. Journal of Xidian University, 2009, 36(2): 245-249.
［9］ Meng X D, Wang T, Wu J X, et al. Short-range Clutter Suppression for Airborne Radar by Utilizing Prefiltering in Elevation ［J］. IEEE Geoscience and Remote Sensing Letters, 2009, 6(2): 268-272.
［10］孟祥东, 王彤, 吴建新, 等. 机载相控阵雷达近程杂波抑制的俯仰向空域自适应算法［J］. 电子与信息学报, 2010, 32(4): 948-952.
Meng Xiangdong, Wang Tong, Wu Jianxin, et al. Elevation Adaptive Algorithm for Short-range Clutter Suppression in Airborne Phased Array Radar ［J］. Journal of Electronics ＆ Information Technology, 2010, 32(4): 948-952.
［11］ Lee C C, Lee J H. Eigenspace-based Adaptive Array Beamforming with Robust Capabilities ［J］. IEEE Trans on Antennas and Propagation, 1997, 45(12): 1711-1716.
［12］ Ayoub T F, Haimovich A M, Pugh M L. Reduced-rank STAP for High PRF Radar ［J］. IEEE Trans on Aerospace and Electronic Systems, 1999, 35(3): 953-962.
［13］ VanTrees H L. Detection, Estimation, and Modulation Theory, Part IV: Optimum Array Processing ［M］. New York: Wiley, 2002.
［14］ Feldman D D. An Analysis of the Projection Method for Robust Adaptive Beamforming ［J］. IEEE Transactions on Antennas and Propagation, 1996, 44(7): 1023-1030.
［15］ Gabriel W F. Adaptive Arrays——an Introduction ［J］. Proceedings of the IEEE, 1979, 64(2): 239-272.

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Robust adaptive beamforming algorithm based on the eigenvector constraint for short-range clutter suppression

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