鲁棒成形极化敏感阵列波束的方法及极化估计
收稿日期: 2016-09-05
修回日期: 2016-11-24
网络出版日期: 2016-12-08
基金资助
国家自然科学基金（61571131）
A robust beamformer with a polarization sensitive array and polarization estimation
Received date: 2016-09-05
Revised date: 2016-11-24
Online published: 2016-12-08
Supported by
National Natural Science Foundation of China (61571131)
虞翔 , 李旦 , 张建秋 . 鲁棒成形极化敏感阵列波束的方法及极化估计[J]. 航空学报, 2017 , 38(6) : 320752 -320752 . DOI: 10.7527/S1000-6893.2016.0312
Based on the polarization sensitive array, a robust beamformer for polarization estimation is proposed. By reformulating the model for polarization sensitive array data, a model decoupling the direction of arrival (DOA) parameters from the polarization ones is given. Based on our model and the robust constraints to the two polarization directions of a signal, a spatial beamspace matrix is designed to robustly obtain an estimation of the signal's two polarization components. The polarization parameter estimations of the signal are then given by the eigenvalue decomposition. Both analyses and simulation results show that our beamformer is robust to the array mismatch caused by the DOA estimate and array position errors. It is also indicated that our method can improve the performance of the polarization estimation effectively by suppressing the interference and noise are suppressed.
[1] KOSTINSKI A B, BOERNER W M. On foundations of radar polarimetry [J]. IEEE Transactions on Antennas and Propagation, 1986, 34(12): 1395-1404.
[2] NEHORAI A, PALDI E. Vector-sensor array processing for electronmagnetic source localization[J]. IEEE Transactions on Signal Processing, 1994, 42(2): 376-398.
[3] 宋汉斌. 三维调制和解调 [D]. 上海: 复旦大学, 2012. SONG H B. Three-dimensional modulator and demodulator[D]. Shanghai: Fudan University, 2012 (in Chinese).
[4] 吴昊. 四维无线调制解调器的理论研究 [D]. 上海: 复旦大学, 2014. WU H. Theoretical research on four-dimensional wireless modulator and demodulator[D]. Shanghai: Fudan University, 2014 (in Chinese).
[5] CHAMBERLAIN N E, WALTON E K, GARBER F D. Radar target identification of aircraft using polarization-diverse features[J]. IEEE Transactions on Aerospace and Electronic Systems, 1991, 27(1): 58-67.
[6] 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. XU Z H. Signal processing based on polarization sensitive array[D]. Changsha: National University of Defense Technology, 2004 (in Chinese).
[7] SCHMIDT R. A signal subspace approach to multiple emitter location and spectral estimation[D]. San Francisco, CA: Stanford University, 1981.
[8] LI J, STOICA P, ZHENG D M. Efficient direction and polarization estimation with a COLD array[J]. IEEE Transactions on Antennas and Propagation, 1996, 44(4): 539-547.
[9] WONG K T. Direction finding/polarization estimation-dipole and/or loop triad(s)[J]. IEEE Transactions on Aerospace and Electronic Systems, 2001, 37(2): 679-684.
[10] WONG K T, YUAN X. "Vector cross-product direction-finding" with an electromagnetic vector-sensor of six orthogonally oriented but spatially noncollocating dipoles/loops[J]. IEEE Transactions on Signal Processing, 2011, 59(1): 160-171.
[11] WONG K T, ZOLTOWSKI M D. Closed-form direction finding and polarization estimation with arbitrarily spaced electromagnetic vector-sensors at unknown locations[J]. IEEE Transactions on Antennas and Propagation, 2000, 48(5): 671-681.
[12] WONG K T, ZOLTOWSKI M D. Self-initiating MUSIC-based direction finding and polarization estimation in spatio-polarizational beamspace[J]. IEEE Transactions on Antennas and Propagation, 2000, 48(8): 1235-1245.
[13] 刘兆霆, 刘中, 何劲. 线性极化敏感阵列的极化平滑算法及相干源参数估计 [J]. 航空学报, 2010, 31(8): 1646-1652. LIU Z T, LIU Z, HE J. Polarization smoothing-based direction finding and polarization estimation of coherent sources with linear electromagnetic vector sensor array[J]. Acta Aeronautica et Astronautica Sinica, 2010, 31(8): 1646-1652 (in Chinese).
[14] LIU J, LIU Z, LIU Q. Direction and polarization estimation for coherent sources using vector sensors[J]. Journal of Systems Engineering and Electronics, 2013, 24(4): 600-605.
[15] 徐有根, 刘志文. 电磁矢量传感器阵列相干信号源波达方向和极化参数的同时估计: 空间平滑法 [J]. 通信学报, 2004, 25(5): 28-38. XU Y G, LIU Z W. Simultaneous estimation of 2-D DOA and polarization of multiple coherent sources using an electromagnetic vector sensor array[J]. Journal of China Institute of Communications, 2004, 25(5): 28-38 (in Chinese).
[16] LI J. Direction and polarization estimation using arrays with small loops and short dipoles[J]. IEEE Transactions on Antennas and Propagation, 1993, 41(3): 379-387.
[17] YUAN Q W, CHEN Q, SAWAYA K. MUSIC based DOA finding and polarization estimation using USV with polarization sensitive array antenna[C]//IEEE Radio and Wireless Symposium, 2006: 339-342.
[18] NEHORAI A, HO K C, TAN B T G. Minimum-noise-variance beamformer with an electromagnetic vector sensor[J]. IEEE Transactions on Signal Processing, 1999, 47(3): 601-618.
[19] AHMAD M I, LIU Z W, XU Y G. Minimum variance beamforming using polarization sensitive array[C]//IEEE Singapore International Conference on Communication System. Piscataway, NJ: IEEE Press, 2008: 489-492.
[20] TAO J W, CHANG W X. A novel combined beamformer based on hypercomplex processes[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013, 49(2): 1276-1289.
[21] XUE J H, ZHOU H J, QIAO X L. Adaptive filtering in polarization domain with the criterion of LCMV[C]//CIE International Conference on Radar, 2006: 1-4.
[22] CAO B, ZHANG Q Y, LIANG D, et al. Blind adaptive polarization filtering based on oblique projection[C]//IEEE International Conference on Communications. Piscataway, NJ: IEEE Press, 2010: 1-5.
[23] LIU J, ZHANG Z J. A new polarization filter based on weighted combination[C]//IEEE International Conference on Signal Processing. Piscataway, NJ: IEEE Press, 2010: 2168-2171.
[24] VOROBYOV S A, GERSHMAN A B, LUO Z Q. Robust adaptive beamforming using worst-case performance optimization: A solution to the signal mismatch problem[J]. IEEE Transactions on Signal Processing, 2003, 51 (2): 2257-2269.
[25] LI J, COMPTON R T. Angle and polarization estimation using ESPRIT with a polarization sensitive array[J]. IEEE Transactions on Antennas and Propagation, 1991, 39(9): 1376-1383.
[26] HARRY L V T. Optimum array processing: Part IV of detection, estimation, and modulation theory[M]. New York: Wiley-InterScience, 2002: 37-59.
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