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| 改进的Woodward方法及用于设计大口面天线馈源 | |
| 引用本文： | 韩艳菊,吕善伟,王杰,南仁东.改进的Woodward方法及用于设计大口面天线馈源[J].北京航空航天大学学报,2004,30(12):1173-1177. |
| 作者姓名： | 韩艳菊 吕善伟 王杰 南仁东 |
| 作者单位： | 1. 北京航空航天大学 电子信息工程学院 北京 100083; 2. 北京遥感设备研究所, 北京 100854; 3. 中国科学院 国家天文台, 北京 100012 |
| 基金项目： | 国家自然科学基金，中国科学院国家天文台FAST项目 |
| 摘 要： | 在分析传统的Woodward综合方法及其改进方法的基础上,引入最小二乘及伪逆,得到一种新的方向图综合方法;并将新方法与阵列波束形成技术结合,用于设计大型口面天线/FAST(Five-hundred meter Aperture Spherical Telescope)的初级方向图.在本文提出的方法中,抽样点数可以与阵列单元数相等和不等,对综合区域没有限制,所以综合的赋形波束更加灵活,适应场合更广泛. |
| 关 键 词： | 天线方向图 综合 最小二乘法 天线馈源 天线波束 |
| 文章编号： | 1001-5965(2004)12-1173-05 |
| 收稿时间： | 2003-06-23 |
| 修稿时间： | 2003年6月23日 |
Modified Woodward synthesis method and application to design the feed of large aperture antennas |
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| Han Yanju,Lü,Shanwei,Wang Jie,Nan Rendong.Modified Woodward synthesis method and application to design the feed of large aperture antennas[J].Journal of Beijing University of Aeronautics and Astronautics,2004,30(12):1173-1177. | |
| Authors: | Han Yanju Lü Shanwei Wang Jie Nan Rendong |
| Institution: | 1. School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics， Beijing 100083, China; 2. Beijing Institute of Remote Sensing Equipment, Beijing 100854,China; 3. National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China |
| Abstract: | A new method of antenna directional pattern synthesis using least-squares or pseudoinverses is presented here ,which is based on the analysis of traditional Woodward-Lawson synthesis method and other modified methods. This new method combined with array beamforming technology is used to design the elementary directional pattern of large aperture antenna/FAST(five-hundred meter aperture spherical telescope). The number of samples can be either equal to or larger than the dimension of antenna arrays in this presented method.And there is no constraints in the synthesis areas.So the synthesized beamforming is much more flexible, and has much wider application situations. |
| Keywords: | antenna directional patterns synthesis principle of least squares antenna feed antenna beams |
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