| GPS自适应天线阵多波束形成算法分析 |
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| 引用本文： | 张文明. GPS自适应天线阵多波束形成算法分析[J]. 兵工学报, 2010, 31(12): 1686-1690 |
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| 作者姓名： | 张文明 |
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| 作者单位： | 国防科学技术大学,电子科学与工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目(60901072) |
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| 摘 要： | GPS天线阵列接收抗干扰技术多采用PI自适应调零算法,但其自由度有限,而基于卫星DOA估计的波束形成技术又敏感于到达角的估计性能。本文提出基于DEML的卫星到达角估计结合多波束形成抗干扰技术,其DOA估计性能稳健性高、计算量小。分析了PI自适应零陷技术和MVDR多波束形成技术的接收机结构、算法。仿真结果表明了多波束形成方法的有效性和稳健性。
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| 关 键 词： | 通信技术 自适应阵列 波束形成 功率倒置 最小方差无失真响应 解耦最大似然 到达角 |
Analysis of Multi-beamforming Algorithms for GPS Adaptive Array |
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| MANG Wen-ming. Analysis of Multi-beamforming Algorithms for GPS Adaptive Array[J]. Acta Armamentarii, 2010, 31(12): 1686-1690 |
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| Authors: | MANG Wen-ming |
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| Affiliation: | (College of Electronic Science and Engineering， National University of Defense Technology， Changsha 410073, Hunan, China) |
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| Abstract: | Power-inversion adaptive algorithm is the most popular method of GPS antenna ar ray anti-jam technology, but the degree of freedom is limited, and the beamforming technology based on the Direction of Arrival (DOA) of GPS satellite is sensiti ve to the performance of estimator. The paper proposes a multi-beamforming anti-jam technology based on decoupled maximum likelihood angler estimator, the per formance of DOA estimator is robust and has less computation. The receiver struc ture and algorithm of both pow... |
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| Keywords: | communiction technology adaptive array beamforming power-inversion minimum variance distortionless response decoupled maximum likelihood direction of arr ival |
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