| 应用于微型飞行器阵列天线的自适应波束形成器 |
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| 引用本文： | 连小华,周建江.应用于微型飞行器阵列天线的自适应波束形成器[J].南京航空航天大学学报,2006,38(3):326-330. |
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| 作者姓名： | 连小华 周建江 |
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| 作者单位： | 南京航空航天大学信息科学与技术学院,南京,210016 |
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| 基金项目： | 国防科技应用基础研究基金 |
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| 摘 要： | 微型飞行器的天线采用灵巧的自适应阵列天线。由于自适应阵列天线的幅相误差会引起线性约束自适应波束形成器的期望信号相消,本文根据微型飞行器自适应天线系统的设计,基于广义旁瓣对消器(G SC)结构,在频域中将阻塞矩阵赋予自适应功能,进而得到了一种改进的,可行的,稳健的自适应波束形成器。仿真试验表明,此方法对天线阵列幅相误差具有稳健性,降低了运算量,可以应用于微型飞行器二维自适应阵列天线,实现实时的波束形成。
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| 关 键 词： | 线性约束最小方差 广义旁瓣对消器 自适应波束形成器 微型飞行器 |
| 文章编号： | 1005-2615(2006)03-0326-05 |
| 收稿时间： | 2005-05-18 |
| 修稿时间： | 2005-07-05 |
Robust Adaptive Beamformer for Antenna on Micro Air Vehicle |
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| Lian Xiaohua,Zhou Jianjiang.Robust Adaptive Beamformer for Antenna on Micro Air Vehicle[J].Journal of Nanjing University of Aeronautics & Astronautics,2006,38(3):326-330. |
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| Authors: | Lian Xiaohua Zhou Jianjiang |
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| Abstract: | Adaptive array antenna(AAA) is used on the micro air vehicle(MAV).The amplitude and phase errors of the antenna array on the MAV lead to the depression of the desired signal in the linearly constrained minimum variance(LCMV) beamformer.A real-time and robust beamformer in the presence of array imperfection is presented based on the generalized sidelobe canceller(GSC) structure and is improved by changing the block matrix into an adaptive one in the frequency domain. Simulation results show that the improved algorithm has better performances in beamforming and reduces the computation load.And it can be used in its two-dimensional AAA of the MAV. |
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| Keywords: | linearly constrained minimum variance(LCMV) generalized sidelobe canceller(GSC) adaptive beamformer micro air vehiole |
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