一种空域-极化域联合稳健自适应波束形成算法
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摘要
为有效提高阵列对来波方向误差和极化参数误差的鲁棒性,提出一种空域-极化域联合稳健自适应波束形成算法,首先在每个干扰信号来波方向-极化角区间上重构干扰噪声协方差矩阵,然后在期望信号来波方向-极化角区间上估计其导向矢量,设计空域-极化域联合稳健波束加权。通过仿真实验可发现,所提算法对由来波方向角度误差和极化参数误差所引起的导向矢量失配具有很好的鲁棒性。
In order to effectively improve the robustness against the direction error of arrival and the polarization parameter error this paper addresses a spatial-polarization domain joint-robust adaptive beamforming algorithm. First of all the Interference-Plus-Noise Covariance Matrix( IPNCM) is reconstructed on the direction-polarization angle interval of each interference signal. Then the steering vector of the desired signal is estimated on its direction-polarization angle interval. The joint-robust beamforming weighting is designed based on the reconstructed IPNCM and the estimated steering vector for airspacepolarization domain. The simulation results show that the proposed algorithm is robust against the steering vector mismatch caused by the direction error of arrival and the polarization parameter error.
In order to effectively improve the robustness against the direction error of arrival and the polarization parameter error this paper addresses a spatial-polarization domain joint-robust adaptive beamforming algorithm. First of all the Interference-Plus-Noise Covariance Matrix( IPNCM) is reconstructed on the direction-polarization angle interval of each interference signal. Then the steering vector of the desired signal is estimated on its direction-polarization angle interval. The joint-robust beamforming weighting is designed based on the reconstructed IPNCM and the estimated steering vector for airspacepolarization domain. The simulation results show that the proposed algorithm is robust against the steering vector mismatch caused by the direction error of arrival and the polarization parameter error.
引文
[1]徐振海.极化敏感阵列信号处理的研究[D].长沙:国防科学技术大学,2004.
[2] WU DXU ZZHANG Let al. Performance analysis of polarization-space-time three-domain joint processing for clutter suppression in airborne radar[J]. Progress in Electromagnetics Research2012(129):579-601.
[3]李迅,李会勇,魏晨,等.空域-极化域联合的APES波束形成[J].雷达科学与技术,2014,12(4):427-431.
[4]刘芳,李会勇.基于特征空间的极化敏感阵列滤波分析[J].雷达科学与技术,2014,12(2):214-217,222.
[5] XU Y GLIU TLIU Z W. Output SINR of MV beamformer with one EM vector sensor of and magnetic noise power[C]//IEEE the 7th International Conference on Singal Processing2004:419-422.
[6] TAO J WCHANG X W. The MVDR beamformer based on hypercomplex process[C]//Preceedings of the IEEE International Conference on Computer Science and Electronics Engineering2012:273-277.
[7]徐振海,王雪松,肖顺平,等.极化敏感阵列滤波性能分析:完全极化情形[J].电子学报,2004,32(8):1310-1313.
[8]徐振海,王雪松,肖顺平,等.极化敏感阵列滤波性能分析:相关干扰情形[J].通信学报,2004,25(10):8-15.
[9] NEHORAI AHO K CTAN B T G. Minimum-noise-variance beamformer with an electromagnetic vector sensor[J]. IEEE Transactions on Signal Processing199947(3):601-618.
[10]陈志坤,乔晓林,李风从.基于极化波束形成的相控阵雷达导引头抗干扰技术研究[J].航空兵器,2016(6):16-20.
[11] WONG K T. Direction finding/polarization estimation-dipole and/or loop triad(s)[J]. IEEE Transactions on Aerospace and Electronic Systems200137(2):679-684.
[12] WONG K TYUAN X.“Vector cross-product directionfinding”with an electromagnetic vector-sensor of six orthogonally oriented but spatially noncollocating dipoles/loops[J]. IEEE Transactions on Signal Processing201159(1):160-171.
[13] WONG K TZOLTOWSKI M D. Self-initiating MUSICbased direction finding and polarization estimation in spatio-polarizational beamspace[J]. IEEE Transactions on Antennas and Propagation200048(8):1235-1245.
[14] CAPON J. High-resolution frequency-wavenumber spectrum analysis[J]. Proceedings of the IEEE196957(8):1408-1418.
[15]刘勇,徐振海,肖顺平.阵列互耦对极化敏感阵列滤波性能的影响[J].电子学报,2006,34(12):2303-2306.
[16] YUAN X LGAN L. Robust algorithm against large look direction error for interference-plus-noise covariance matrix reconstruction[J]. Electronics Letters201652(6):448-450.
[2] WU DXU ZZHANG Let al. Performance analysis of polarization-space-time three-domain joint processing for clutter suppression in airborne radar[J]. Progress in Electromagnetics Research2012(129):579-601.
[3]李迅,李会勇,魏晨,等.空域-极化域联合的APES波束形成[J].雷达科学与技术,2014,12(4):427-431.
[4]刘芳,李会勇.基于特征空间的极化敏感阵列滤波分析[J].雷达科学与技术,2014,12(2):214-217,222.
[5] XU Y GLIU TLIU Z W. Output SINR of MV beamformer with one EM vector sensor of and magnetic noise power[C]//IEEE the 7th International Conference on Singal Processing2004:419-422.
[6] TAO J WCHANG X W. The MVDR beamformer based on hypercomplex process[C]//Preceedings of the IEEE International Conference on Computer Science and Electronics Engineering2012:273-277.
[7]徐振海,王雪松,肖顺平,等.极化敏感阵列滤波性能分析:完全极化情形[J].电子学报,2004,32(8):1310-1313.
[8]徐振海,王雪松,肖顺平,等.极化敏感阵列滤波性能分析:相关干扰情形[J].通信学报,2004,25(10):8-15.
[9] NEHORAI AHO K CTAN B T G. Minimum-noise-variance beamformer with an electromagnetic vector sensor[J]. IEEE Transactions on Signal Processing199947(3):601-618.
[10]陈志坤,乔晓林,李风从.基于极化波束形成的相控阵雷达导引头抗干扰技术研究[J].航空兵器,2016(6):16-20.
[11] WONG K T. Direction finding/polarization estimation-dipole and/or loop triad(s)[J]. IEEE Transactions on Aerospace and Electronic Systems200137(2):679-684.
[12] WONG K TYUAN X.“Vector cross-product directionfinding”with an electromagnetic vector-sensor of six orthogonally oriented but spatially noncollocating dipoles/loops[J]. IEEE Transactions on Signal Processing201159(1):160-171.
[13] WONG K TZOLTOWSKI M D. Self-initiating MUSICbased direction finding and polarization estimation in spatio-polarizational beamspace[J]. IEEE Transactions on Antennas and Propagation200048(8):1235-1245.
[14] CAPON J. High-resolution frequency-wavenumber spectrum analysis[J]. Proceedings of the IEEE196957(8):1408-1418.
[15]刘勇,徐振海,肖顺平.阵列互耦对极化敏感阵列滤波性能的影响[J].电子学报,2006,34(12):2303-2306.
[16] YUAN X LGAN L. Robust algorithm against large look direction error for interference-plus-noise covariance matrix reconstruction[J]. Electronics Letters201652(6):448-450.