| 基于L型阵列的方位估计及互耦自校正算法研究 |
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| 引用本文： | 吴彪,陈辉,杨春华. 基于L型阵列的方位估计及互耦自校正算法研究[J]. 电子学报, 2010, 38(6): 1316-1322 |
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| 作者姓名： | 吴彪 陈辉 杨春华 |
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| 作者单位： | 空军雷达学院雷达兵器运用工程军队重点实验室,湖北武汉,430010;中国船舶重工集团第723研究所,江苏扬州,225001 |
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| 摘 要： | 针对L型阵，提出了一种互耦自校正算法（SAL: self-calibration algorithm for L-shaped array）。该算法利用L型阵列特殊的互耦特性，实现了对信源信息（DOA）和阵列互耦系数的解耦合，从而无需任何校正源就可以实现两类参数的估计。与基于循环迭代最小化技术的传统自校正算法相比，该算法先通过搜索谱峰估计信源信息（DOA），再估计互耦系数，从而避免了多维搜索带来的庞大运算量和迭代中的全局收敛性问题。仿真结果表明本文提出的自校正算法具有精度高、计算量小的特点。
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| 关 键 词： | L型阵列 DOA估计 互耦 自校正 |
| 收稿时间： | 2008-11-03 |
| 修稿时间： | 2009-03-23 |
Study of DOA Estimation and Self-Calibration Algorithm for L-Shaped Array in the Presence of Mutual Coupling |
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| WU Biao,CHEN Hui,YANG Chun-hua. Study of DOA Estimation and Self-Calibration Algorithm for L-Shaped Array in the Presence of Mutual Coupling[J]. Acta Electronica Sinica, 2010, 38(6): 1316-1322 |
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| Authors: | WU Biao CHEN Hui YANG Chun-hua |
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| Affiliation: | WU Biao1,CHEN Hui1,YANG Chun-hua2(1.Key Research Lab,Radar Academy,Wuhan,Hubei 430010,China,2.The 723 Institute of CSIS,Yangzhou,Jinangsu 225001,China) |
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| Abstract: | A self-calibration algorithm(SAL:self-calibration algorithm for L-shaped array) is presented for L-shaped array in the presence of mutual coupling.The proposed algorithm utilizes special mutual coupling characteristic of L-shaped array to decouple the signal source information(DOA) and coupling coefficients of antenna array so that two kinds of parameter estimations can be realized without any calibration sources.It not only calibrates mutual coupling inside sub-arrays,but also calibrates mutual coupling be... |
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| Keywords: | L-shaped array DOA estimation mutual coupling self-calibration |
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