| 一种利用功率反演和线性约束最小方差算法的自适应天线 |
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| 引用本文： | E. A. MOHAMED 谈展中.一种利用功率反演和线性约束最小方差算法的自适应天线[J].中国航空学报,2005,18(2):153-160. |
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| 作者姓名： | E. A. MOHAMED 谈展中 |
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| 作者单位： | [1]School of Electronic and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083 , China |
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| 摘 要： | 介绍了一种新的基于功率反演和线性约束最小方差的算法，以高度抑制GPS接收机的干扰信号。这种结构通过提调整天线阵列的权值，实时地接收并改变来自各方向的GPS信号，同时对不同方向的干扰信号有高的抑制比。对固定和移动的干扰都做了仿真，仿真表明这种结构有很深的零点，对固定干扰信号的抑制比可达到115dB，对移动干扰信号的抑制比可达到94dB。
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| 关 键 词： | 自适应天线 功率反演（PI） 线性约束最小方差（LCMV） GPS 抗干扰 |
| 文章编号： | 1000-9361（2005）02-0153-08 |
| 收稿时间： | 2004-09-16 |
| 修稿时间： | 2005-01-05 |
Adaptive Antenna Utilizing Power Inversion and Linearly Constrained Minimum Variance Algorithms |
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| E. A. MOHAMED,TAN Zhan-zhong.Adaptive Antenna Utilizing Power Inversion and Linearly Constrained Minimum Variance Algorithms[J].Chinese Journal of Aeronautics,2005,18(2):153-160. |
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| Authors: | E A MOHAMED TAN Zhan-zhong |
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| Abstract: | This paper presents a new algorithm based on the power inversion (PI) and the linearly constrained minimum variance (LCMV). This algorithm is capable of adjusting the weights of the antenna array in real time to respond to and improve the global positioning system (GPS) received signals coming from the desired directions and at the same time to highly suppress the jammers coming from the other directions. The simulation is performed for fixed and moving jammers. It indicates that this structure can give deeper nulls, more than 115?dB depths for fixed jammers and more than 94?dB depths for moving jammers. |
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| Keywords: | adaptive antenna power inversion algorithm LCMV GPS anti-jamming |
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