KMS of Xinjiang Astronomical Observatory, CAS
| 一种基于机电耦合的大型赋形双反射面天线指向调整方法 | |
| Alternative Title | Electromechanical coupling-based direction adjustment method of large-scale forming double-reflection surface antenna |
| 王从思; 杨崇金; 王艳; 陈光达; 朱敏波; 庞毅; 连培园; 黄进; 李鹏; 李娜; 周金柱; 邓昌炽 | |
| 2015-08-31 | |
| Patent Number | 201510548132.2 |
| Rights Holder | 西安电子科技大学 |
| Country | 中国 |
| Subtype | 发明 |
| Status | 实质审查的生效 |
| Application Number | CN201510548132.2 |
| Open (Notice) Number | CN105206941A |
| Date Available | 2015-12-30 |
| Abstract | 本发明公开了一种基于机电耦合的大型赋形双反射面天线指向调整方法，包括：(1)建立天线结构有限元模型；(2)确定天线赋形主反射面的分段拟合面；(3)计算主反射面热变形后的有限元节点坐标，副反射面转动角及顶点位移量；(4)确定变形后的天线赋形主反射面的最佳吻合面；(5)计算天线主反射面温度分布造成的天线指向偏差；(6)计算天线热变形引起的副反射面指向偏差；(7)计算天线因结构热变形造成的总指向偏差；(8)将局部坐标系下天线的总指向偏差转换为大地坐标系下天线的指向调整量；(9)计算调整后的天线指向与波束指向。本发明通过调整天线伺服系统的方位俯仰角来改善天线的电性能，其分析与计算过程更加简洁和高效。 |
| Other Abstract | The invention discloses an electromechanical coupling-based direction adjustment method of a large-scale forming double-reflection surface antenna. The method includes the following steps that: (1) the finite element model of an antenna structure is established; (2) the piecewise fitting surface of the forming main reflection surface of the antenna is determined; (3) finite element node coordinates after the thermal deformation of the main reflection surface, as well as the rotation angle and vertex displacement quantity of an auxiliary reflection surface are calculated; (4) the optimal matching surface of the forming main reflection surface of the antenna after deformation is determined; (5) antenna direction deviation caused by temperature distribution of the main reflection surface of the antenna is calculated; (6) direction deviation of the auxiliary reflection surface caused by the thermal deformation of the antenna is calculated; (7) total direction deviation caused by the structural thermal deformation of the antenna is calculated; (8) the total direction deviation of the antenna under a local coordinate system is converted into direction adjustment quantity of the antenna under a geodetic coordinate system; and (9) the direction of the antenna and the direction of beams after adjustment are calculated. According to the method of the invention, the electric performance of the antenna is improved through adjusting the azimuth pitch angle of an antenna servo system. The analysis and calculation processes of the method are more concise and efficient. |
| Classification | H01Q19/12 ; H01Q15/14 |
| Language | 中文 |
| Patent Agent | 西安通大专利代理有限责任公司 61200 |
| Document Type | 专利 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/1531 |
| Collection | 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题2：复杂环境下天线结构保型与高精度指向控制 射电天文研究室 |
| Affiliation | 西安电子科技大学 |
| Recommended Citation GB/T 7714 | 王从思,杨崇金,王艳,等. 一种基于机电耦合的大型赋形双反射面天线指向调整方法. 201510548132.2[P]. 2015-08-31. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2015105481322.pdf（4516KB） | 专利 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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