宽带阵列互耦建模及其对DOA估计的影响

Journal of Systems Engineering and Electronics ›› 2009, Vol. 31 ›› Issue (8): 1856-1860.

宽带阵列互耦建模及其对DOA估计的影响

刘章孟, 黄知涛, 于红旗, 周一宇

国防科技大学电子科学与工程学院, 湖南, 长沙, 410073

收稿日期:2008-06-11 修回日期:2008-12-13 出版日期:2009-08-20 发布日期:2010-01-03
作者简介:刘章孟(1984- ),男,博士研究生,主要研究方向为阵列信号处理.E-mail:liuzmcn@yahoo.cn
基金资助:
国家自然科学基金(60502040)资助课题

Modeling of wideband array signal in presence of mutual coupling and its influence on DOA estimation

LIU Zhang-meng, HUANG Zhi-tao, YU Hong-qi, ZHOU Yi-yu

School of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China

Received:2008-06-11 Revised:2008-12-13 Online:2009-08-20 Published:2010-01-03

摘要/Abstract

摘要： 为了研究不同几何分布的宽带阵列对互耦效应的适应能力,建立了一种互耦条件下新的宽带阵列天线接收数据模型.基于该模型比较了互耦效应对各种测向方法性能的影响,以及几种常见阵列结构对互耦效应的适应能力.最后提出了一种宽带互耦补偿的思想,利用各频率点上互耦矩阵的测量值实现了对宽带阵列的互耦补偿.

Abstract: A new model of the wideband array output in the presence of mutual coupling is constructed to study the adaptability of arrays with different shapes to the mutual coupling effect.The performance deterioration of the narrowband and wideband direction finding methods due to such array imperfection is studied via simulations,together with a comparison in adaptability among arrays with different shapes.Finally,a mutual coupling compensating method,which exploits the array mutual coupling impedances at discrete frequencies within the signal bandwidth,is proposed to mitigate the influence of mutual coupling on the direction finding methods.

中图分类号:

TN911.7

刘章孟, 黄知涛, 于红旗, 周一宇. 宽带阵列互耦建模及其对DOA估计的影响[J]. Journal of Systems Engineering and Electronics, 2009, 31(8): 1856-1860.

LIU Zhang-meng, HUANG Zhi-tao, YU Hong-qi, ZHOU Yi-yu. Modeling of wideband array signal in presence of mutual coupling and its influence on DOA estimation[J]. Journal of Systems Engineering and Electronics, 2009, 31(8): 1856-1860.

参考文献

[1] Yeh C C.Leou M L,Ucci D R.Bearing estimations with mutual coupling present[J].IEEE Trans,on Antennas and Propagation,1989,37(10):1332-1335.
[2] Friedlander B,Weiss A J.Direction finding in the presence of mutual coupling[J].IEEE Trans,on Antennas and Propagation,1991.39(3):273-284.
[3] Hendrik R.Spatial correlation in uniform circular arrays based on a spherical-waves model for mutual coupling[J].International Journal of Electronics and Communications,2006,60(7):521-532.
[4] Zhang T T,Lu Y L,Hui H T.Simultaneous estimation of mutual coupling matrix and DOAs for UCA and ULA[C]//17th International Zurich Symposium on Electromagnetic Compatibility,2006:265-268.
[5] Qi C,Chen Z,Zhang Y,et al.DOA estimation and self-calibration algorithm for multiple subarrays in the presence of mutual coupling[J].IEEE Proc.of Radar,Sonar and Navigation,2006,153(4):333-337.
[6] 齐崇英,王永良,张永顺,等.多子阵互耦条件下的一维波达方向估计及互耦自校正[J].电子与信息学报,2006,28(5):909-914.
[7] Sellone F,Serra A.A novel online mutual coupling compensation algorithm for uniform and linear arrays[J].IEEE Trans,on Signal Processing,2007,55(2):560-573.
[8] Manikas A,Fistas N.Modeling and estimation of mutual coupling between array elements[C]//Proc.of the IEEE Conference on Acoustics,Speech and Signal Processing,Adelaide,Australia,1994,4:553-556.
[9] Tuan D,Peter R.Wideband direction-of-arrival estimation in the presence of array errors and mutual coupling[C]//Proc.of the 7th International Symposium on Theoretical Electrical Engineering,2003:25-28.
[10] Hui H T.Improved compensation for the mutual coupling effect in a dipole array for direction finding[J].IEEE Trans.on Antennas and Propagation,2003,51(9):2498-2503.
[11] Zhang T T,Hui H T,Lu Y L.Compensation for the mutual coupling effect in the ESPRIT direction finding algorithm by using a more effective method[J].IEEE Trans.on Antennas and Propagation,2005,53(4):1552-1555.
[12] Pasala K M,Friel E M.Mutual coupling effects and their reduction in wideband direction of arrival estimation[J].IEEE Trans.on Aerospace and Electronic Systems,1994,30(4):1116-1122.
[13] Kraus J D,Marhefka R J.天线(下册)[M].3版.章文勋,译.北京:电子工业出版社,2005.
[14] Wang H,Kaveh M.Coherent signal-subspace processing for the detection and estimation of angles of arrival of multiple wide-band sources[J].IEEE Trans.on Acoustics,Speech,and Signal Processing,1985,33(4):823-831.
[15] Gupta I J,Ksienski A A.Effect of mutual coupling on the performance of adaptive arrays[J].IEEE Trans.on Antennas and Propagation,1983,31(5):785-791.
[16] Xi Y P,Fang D G,Sun Y X,et al.Mutual coupling in a linear dipole array of finite size[J].IEEE Proc.of Microwave Antennas Propagation,2005,152(5):324-330.
[17] Zhang Q T.Probability of resolution of the MUSIC algorithm[J].IEEETrans.on Signal Processing,1995,43(4):978-987.