| 一种均匀圆阵幅相及互耦误差校正算法 |
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| 引用本文： | 李文浩,赵拥军.一种均匀圆阵幅相及互耦误差校正算法[J].电子对抗,2008(1):21-25. |
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| 作者姓名： | 李文浩 赵拥军 |
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| 作者单位： | [1]信息工程大学信息工程学院,郑州450002 [2]北京理工大学电子工程系,北京100081 |
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| 摘 要： | 阵元幅相、互耦误差对阵列DOA估计性能产生了严重影响。文章结合误差模型，提出了一种结合校正矩阵特殊结构设定约束条件的误差校正算法，进行的约束设定能够有效避免重复的无益估计过程，减少了运算复杂度，方法简便、快捷，且无需知道辅助源的精确位置信息便能够精确估计出误差参数及来波方位，最后通过仿真试验说明了算法的有效性。
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| 关 键 词： | 幅相 互耦 误差 均匀圆阵 校正 |
| 收稿时间： | 2007-10-10 |
An Algorithm for Gain/Phase and Mutual Coupling Errors Calibration of Uniform Circular Arrays |
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| Li Wenhao Zhao Yongjun.An Algorithm for Gain/Phase and Mutual Coupling Errors Calibration of Uniform Circular Arrays[J].Electronic Warfare,2008(1):21-25. |
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| Authors: | Li Wenhao Zhao Yongjun |
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| Affiliation: | Li Wenhao1 Zhao Yongjun1,2(1.Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China,2.Department of Electronics Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | The presence of sensor gain/phase and mutual coupling errors severely degrades the performance of direction-of-arrival(DOA) estimation.A method for calibrate the errors by setting linear constraints to pre-constraint the calibration matrix is proposed in this paper.The constraint condition can avoid useless estimation process effectively.Error parameters and correct DOA estimation will be achieved without accurate aided signal locations.Simulation results demonstrate the validity of the proposed method. |
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| Keywords: | gain/phase mutual coupling errors UCA(Uniform Circular Array) calibration |
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