| 卫星导航系统中平台运动对天线阵列性能的影响分析 |
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| 引用本文： | 曾祥华,李敏,聂俊伟,王飞雪.卫星导航系统中平台运动对天线阵列性能的影响分析[J].国防科技大学学报,2011,33(1):95-99. |
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| 作者姓名： | 曾祥华 李敏 聂俊伟 王飞雪 |
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| 作者单位： | 国防科技大学电子科学与工程学院; |
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| 摘 要： | 常规的天线阵自适应算法侧重于研究稳态条件下的最优性能.当卫星导航接收机应用于运动载体(如炸弹、飞机、机动车辆、舰艇)时,阵列平台的运动(或振动)将会导致权值"零陷"指向与干扰来向失配.建立了运动条件下的阵列信号模型,将平台运动分为第一类平台运动(高频振动)和第二类平台运动(平稳转动),给出了两类运动模型下阵列输出信干噪...
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| 关 键 词： | 卫星导航系统 抗干扰 天线阵 平台运动 零陷 |
Effects of Motion on Adaptive Array in Satellite Navigation Systems |
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| ZENG Xianghu,LI Min,NIE Junwei and WANG Feixue.Effects of Motion on Adaptive Array in Satellite Navigation Systems[J].Journal of National University of Defense Technology,2011,33(1):95-99. |
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| Authors: | ZENG Xianghu LI Min NIE Junwei and WANG Feixue |
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| Institution: | ZENG Xiang-hua,LI Min,NIE Jun-wei,WANG Fei-xue(College of Electronic Science and Engineering,National Univ.of Defense Technology,Changsha 410073,China) |
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| Abstract: | Adaptive algorithms of antenna arrays usually focus on the optimal performance under stable conditions.If GNSS receivers are mounted on moving subjects(such as bombards,aircrafts,vehicles or ships),the movement or turbulence of the platform can make the null direction mismatch the interferer direction.The current researchis paper firstly establisheds an array signal model under platform motion,which wais classified into two types: the first motion type(high-frequency turbulence) and the second motion type(s... |
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| Keywords: | satellite navigation systems anti-jammer antenna array moving platform null |
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